NIT

INTER UNIVERSITY ACCELERATOR CENTRE
ARUNA ASAF ALI MARG
NEW DELHI - 110067
NOTICE INVITING TENDER (NIT) NO. IUAC/NIT/13/SSKS/2014-15
Name of the work:- Fabrication of 06 Nos. (six numbers) of Superconducting Niobium Quarter
Wave Resonators along with their Niobium Slow Tuner Bellows [06 Nos. (six numbers)], 08 Nos.
(eight numbers) of spare Niobium Slow Tuner Bellows, 02 Nos. (two numbers) of spare Niobium
Loading Arms and 03 Nos. (three numbers) of spare Niobium Drift Tubes as per the drawings,
technical details and specifications.
` 500/- (Rupees Five Hundred Only)
` 75,000/- (Rupees Seventy Five Thousand only)
through Demand Draft (DD)
Last Date & Time of submission of Tender (Part 20th March, 2015 at 3:00 PM
A & B)
Date and Time for opening of Tender (only 20th March, 2015 at 3:30 PM
Technical Bid Part-A)
Date and Time for opening of Tender (Price Bid To be intimated later on to only Technically
Qualified Bidders
Part-B)
Administrative Officer (S&P)
Address for submission of Tender
Inter-University Accelerator Centre,
Aruna Asaf Ali Marg,
New Delhi - 110067
Committee Room (IUAC)
Place of opening of the Tender
Tender Cost
Earnest Money Deposit
GENERAL CONDITIONS OF TENDER:
For the proposed work, Inter-University Accelerator Centre (IUAC), New Delhi will only engage
with a Bidder who is located within Delhi/NCR region.
Submission of Tender: Tenders should be submitted in sealed envelopes in two Separate Parts, namely:
"Technical Bid" (Part-A), and "Price Bid" (Part-B). Both the Parts should be further sealed in another
envelope super-scribing NIT (Notice Inviting Tender) No., name of work, due date for opening, Bidder’s
name & address. The Tender duly filled in may be sent to the above mentioned address either by post or
hand carried and dropped in the tender box kept in the area near the west side entrance, after ensuring that
due entries are made in the register kept at the reception counter. The Tender should not be handed
over to any employee of the Centre. No Tender shall be accepted after the due date and time. Tender
once submitted will remain with the Centre and never be returned to the Bidder.
Technical Bid (Part-A): In this bid, the Bidder should submit his company profile, organizational setup,
credentials, proof of successful fabrication of similar types of works executed during last ten years. In
addition, the Bidder should submit the entire NIT duly signed & stamped as part of his acceptance
of the terms and conditions of this NIT. The Bidder should not put the Price Bid (Part-B) in this
envelop. No deviations in respect of NIT conditions are acceptable.
Only those Bidders who meet the prequalification criteria as per Annexure-A will be invited for
opening the Price Bid. Tenders submitted by the Bidders who do not qualify the pre-qualification
criteria as per Annexure-A will be rejected.
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 1 of 14
The Bidders may contact concerned IUAC engineers associated with this work before submitting the
tender regarding the fabrication of the niobium resonators for any technical query only.
IUAC reserves the right to visit and inspect the Bidder’s fabrication facility to verify the requirements
mentioned in Annexure-A, before qualifying the Technical Bid. In addition, the Bidder shall allow the
concerned IUAC personnel to inspect the progress of work whenever required, during the course of the
project / works.
Price Bid (Part-B): In this Bid the Bidder is required to quote his rates/prices for carrying out the
works mentioned in Annexure-B: “Scope of works & technical specifications” and Annexure-C:
“Description of works”. The Bidder should not submit the Price Bid in the same envelop that
contains the Technical Bid (Part-A), otherwise his bid will be completely rejected.
The Bidders should quote unconditional rates, neatly written without any overwriting and all pages should
be duly signed & stamped. No deviations in respect of NIT conditions are acceptable.
Earnest Money Deposit (EMD): An earnest money of ` 75,000/-(Rupees Seventy Five Thousand only)
has to be enclosed along with the Technical Bid (Part-A). The EMD shall be only in the form of Bank
Draft payable to Inter-University Accelerator Centre, at New Delhi. No Cheque/Cash shall be accepted as
EMD. EMD of technically disqualified Bidders will be returned within 15 days from the date of
evaluation of the Technical Bids. The refund of EMD to the lowest 4th Bidders onwards shall be made
within 15 days from the date of opening of Price Bid. The refund of EMD of the 2 nd & 3rd lowest bidders
shall be made after award of work and site mobilization by the successful Bidder. The EMD of the
successful lowest Bidder (L1) shall be held back as security deposit and will be released after completion
of the works and site clearance.
Validity of Tender: Tender shall be valid for acceptance by IUAC without any change in rates and NIT
conditions for a period of ninety (90) days from the date of opening of the Price Bid.
Escalation: No escalation over and above the rates quoted by the Bidder shall be paid during the
execution of contract.
Completion Time: Time shall be the essence of this contract and the entire work as titled above is to be
completed in all respects within a period of two years from the date of issue of Purchase Order (PO) by
IUAC. Any delay in completing the work for reasons attributable to the supplier is liable for liquidated
damages as per the relevant clauses of NIT. Under the force-majeure conditions or delay due to reasons
beyond control of the Supplier, IUAC may grant suitable time extension for which the Supplier has to
request along with the justification/ reasons well in advance to Director, IUAC for approval without any
prejudice to price escalation. The decision of Director, IUAC will be final and binding on the Bidder.
The Free Issue Materials (FIM) like Niobium (Nb) – Grade-1 and RRR Grade, Stainless Steel (SS),
bonded materials of Niobium-Stainless Steel (Nb-SS) and Niobium-Copper (Nb-Cu), various dies,
fixtures & tooling will be provided by IUAC to the successful Bidder for the specified work. Any damage
to any of the components during the course of work will be borne by the Bidder. The supplied items shall
be returned to IUAC at any stage of execution of the job for inspection or testing purposes. All balance
materials, dies, fixtures & tooling must be returned to IUAC upon completion of the works.
Scope of Work: Detailed scope of work, specifications etc. are provided in Annexure-B and AnnexureC.
Deviations: No deviation from the stipulated terms and conditions will be allowed. Tenders should be
unconditional.
Correspondence: All correspondence in respect of this Tender shall be made to: Administrative Officer
(S&P), Inter-University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi-110067.
Terms of Payment: The payment shall be made in three installments, divided into 35%, 35% & 30% of
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 2 of 14
the total value, after achieving the milestones as per the following. The first installment of payment (35%)
shall be made after completion of the six (6) bare niobium Outer Housings along with their Ports. The
second installment of payment (35%) shall be made after the completion of the six (6) Central Conductor
assemblies (Loading Arm + Drift Tube) and their attachment to the niobium Outer Housing, and 2 (two)
spare Loading Arms, 3 (three) spare Drift Tubes. The third and final installment of payment (30%) shall
be made after completion & delivery of the six (06) niobium Quarter Wave Resonators complete with
their stainless steel outer jackets, fourteen (14) niobium Slow Tuner assemblies, vacuum leak testing of
all the six (6) Quarter Wave Resonators and acceptance by IUAC.
Guarantee/Defect liability period: - The Bidder should guarantee for the works executed by him from
manufacturing/engineering defects and bad workmanship for a period of one year from the date of final
acceptance by IUAC. During this period, if any repairs/rectifications are needed, the same shall be made
free of cost.
IUAC reserves the right to reject any or all the Tenders in full or in part without assigning any reasons
whatsoever, and the decision of the Centre in this regard will be binding on all the Bidders. Tenders not
complying with any of the provisions stated in this Tender document are liable to be rejected. Director,
IUAC reserves the right to accept or reject any Tender without assigning any reason and does not
bind himself to accept the lowest tender.
Liquidated damages: In case the work is delayed beyond the specified completion period for reasons
attributable to the Bidder, deductions on account of Liquidated damages @0.5% of the contract value per
week will be deducted subject to a maximum of 5% of the total incomplete works. In such case
incomplete work shall be worked out by deducting value of works actually executed from total order
value. However, in case the works are delayed beyond the scheduled completion/ contract period, IUAC
reserves the right to get the work done by any other vendor at the risk and cost of the Bidder and amount
to the affect will be deductible from his bills/dues.
Termination of Contract:- Director, IUAC reserve the right to terminate the contract on account of poor
workmanship, non-compliance of set norms/ specifications for the works, delay in progress of work,
violation of any contract provisions by the Supplier. The contract can also be terminated at the request of
Supplier. In such cases the Supplier is liable to pay Liquidation damages @ 5% of tendered value.
Any dispute arising out of this contract will be subjected to jurisdiction of New Delhi/Delhi.
Accepted
(Signature & Stamp of Bidder)
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 3 of 14
Annexure-A
(IUAC/NIT/13/SSKS/2014-15)
Essential Pre-Qualification Criteria
Essential selection criteria for prequalification of the Bidder for Fabrication of six (06) Nos. of
Superconducting Niobium Quarter Wave Resonators, fourteen (14) Nos. of Niobium Slow Tuner
Bellows (i.e. 6+8), two (2) Niobium Loading Arms and three (3) Niobium Drift Tubes, is as follows:
The Bidder should have facilities, experience and expertise in the fabrication of Superconducting
Niobium Radio Frequency (RF) Resonators used in Particle Accelerators. The Bidder should submit
proof in the form of at least one Purchase Order (PO) for the fabrication of superconducting
niobium resonators of value not less than `10,00,000/- (Rupees Ten lakhs) executed by him in the
past ten years for any reputed Research Laboratory or Organization of Government of India. The
Bidder should furnish name/s, official telephone number/s, Email address of the contact person/s in
the concerned Laboratory or Organization of Govt. of India for whom such works were executed
by him. Failure to furnish such Purchase Orders and details will result in the disqualification of the
Bidder.
The following infrastructure is essential for the successful completion of the works. All the below
mentioned facilities must be available under one roof. No sub-contract / outsourcing of jobs will be
accepted (unless otherwise specified).
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Clean and Dust free Environment
Skilled manpower for Machining and Assembly
Machining capability
TIG welding facility
Inspection facility
Design and Drafting facility
Storage facility (separate room)
Packing
Transportation
Connectivity to IUAC
1. Clean and Dust free Machine Shop Environment
Clean and dust free environment is required for machining, forming, polishing, assembling, measurement
& inspection of niobium components for the resonator assembly. Working area and machining &
fabrication areas shall be free of dust, oil and other sharp materials. The components shall be carried
/moved by special carts, trolleys and tools which are only meant for this purpose. The Bidder should
provide cleaning agents like Iso-Propyl Alcohol, Acetone etc., Lint-Free Tissue papers and hand gloves.
The operators shall use clean hand gloves (where required), cleaning agents and lint free tissue papers to
handle the resonator components.
2. Skilled manpower for Machining and Assembly
Machining, handling and assembling of niobium and other resonator components shall be done by highly
skilled personnel only.
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IUAC/NIT/13/SSKS/2014-15
Page 4 of 14
3. Machining Capability












Medium size Lathes
Horizontal & Vertical Milling machines
CNC Lathe
CNC Milling machine
CNC wire-cut and EDM (may be outsourced)
Horizontal boring machine
Shearing machine with a capacity to cut 3.5 mm thick and at least 1000 mm wide stainless steel
(SS) sheet
Rolling machines (Auto/Manual) with a capacity to roll 1500 mm long cylinders of minimum 180
mm diameter from a 3.5 mm thick SS sheet
Drilling machines (Radial and small)
Hydraulic Press of minimum 50 Ton capacity
Power saw
Material handling facilities like overhead cranes, floor cranes etc.
4. TIG Welding Facility
The Bidder should have in-house Tungsten Inert Gas (TIG) welding facility and skilled welders.
Experience in fabricating Cryogenic Quality components [i.e. vacuum tight vessels (leak rate <110-9
mbar.l/s) working at low temperatures (4.2 K)] is highly desirable.
5. Inspection Facility
Surface Table
Micrometers and Vernier Calipers,
Slip Gauges, Dial Gauges, Depth Gauges etc.
Portable/Table Top CMM (Coordinate Measuring Machine) (may be outsourced)
Die Penetrant testing facility
6. Design and Drafting Facility
The Bidder should have modern design and drafting software (e.g. AutoCAD, SolidWorks etc.), trained
draughts men and equipment.
7. Storage Facility
Materials and fixtures used for the resonator fabrication are expensive. So, these items have to be stored /
preserved in a clean area and safe custody. A separate room with locking arrangement within the
workshop facility has to be provided by the Bidder with proper shelves in a clean environment.
8. Packing
The resonator parts, components and assemblies move back and forth between IUAC and Bidder’s site
during the fabrication process. All niobium resonator components, sub-assemblies and final assemblies
must always be wrapped in aluminium foil and/or clean plastic sheet and packed properly for safe
handling and transportation. For completion of this project, IUAC may have to transport very delicate
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 5 of 14
instruments, e.g. electronics, leak detector (if required), pumps and other equipment to the Bidder’s site.
The Bidder shall provide proper packing during transportation of such items.
9. Transportation
The fabrication of niobium resonators takes place both at IUAC and at Bidder’s site as per the
requirement. The Bidder should provide the transportation facility for moving niobium resonator
components from Bidder’s site to IUAC and back, as and when required.
10. Connectivity to IUAC
During the entire fabrication process the niobium resonator parts, components and assemblies will
move back and forth several times between IUAC and Bidder’s site. Since this is an R&D activity,
supervision and interaction between Bidder and IUAC Scientists and Engineers is essential for the success
of the project. IUAC will only engage with a Bidder who is located within Delhi/NCR region.
Check List to be filled and duly signed & stamped by the Bidder before submitting the tender.
S.NO
01
02
03
LIST OF DOCUMENTS TO BE SUBMITTED
YES/NO
Purchase Order/s from reputed Government Laboratories for
successfully carrying out the fabrication of Superconducting
Niobium Resonators of value not less than `10,00,000/(Rupees Ten lakhs) in the past ten years.
Details of existing facilities
Earnest Money Deposit in the form of Demand Draft (DD)
REMARKS
Accepted
(Signature & Stamp of Bidder)
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 6 of 14
Annexure – B
(IUAC/NIT/13/SSKS/2014-15)
Detailed Scope of Works and Technical Specifications
Scope of Work: Fabrication of 06 Nos. (six numbers) of Superconducting Niobium Quarter Wave
Resonators (QWR) along with their Niobium Slow Tuners Bellows [6 Nos. (six numbers)], 08 Nos.
(eight numbers) of spare Niobium Slow Tuner Bellows, 02 Nos. (two numbers) of spare Niobium
Loading Arms and 03 Nos. (three numbers) of spare Niobium Drift Tubes, as per the drawings,
technical details and specifications attached. Each of the fully fabricated Resonator Assembly will
be tested for vacuum tightness at IUAC. Subsequently they will be tested at low temperature for RF
tests.
The fabrication of superconducting niobium resonators is quite complex and involves several processes
and facilities. Some of the fabrication processes will be carried out by the Bidder and some will be done
by IUAC. While the machining, sheet metal forming, rolling, fitting of the niobium and stainless steel
parts/ components / sub-assemblies and TIG welding of stainless steel parts/ components / sub-assemblies
etc. will be done by the Bidder, the electron beam welding, electropolishing and heat treatment of the
niobium parts / components / sub-assemblies and final testing (at 4.2 K) of the resonators will be done by
IUAC. Thus the resonator parts/ components / sub-assemblies move back and forth between the Bidder’s
site and IUAC several times during the course of the work. The details of the various processes /
operations and responsibilities of the works are given in Annexure-C.
The niobium components are to be machined to the final size and assembled within the tolerance
prescribed. The Bidder should provide sufficient technical details about the machining, forming and
assembly processes that he plans to adopt, and discuss the same with IUAC engineers and scientists
before commencing work.
General Description
The main assembly drawing of the superconducting niobium quarter wave resonator is QWR-001-E. The
superconducting resonator operates in high vacuum (< 10-8 mbar) at 4.2 K (~ -269 C), well below the
superconducting transition temperature of niobium (9.2 K). The resonator is mounted in a cryostat, with
the vacuum being common to both the cryostat and the resonator. During operation, the resonator is kept
in the superconducting state by filling liquid helium in the central conductor (Loading Arm & Drift Tube
assembly, please refer Bare Niobium QWR, and QWR with Slow Tuner Drawings) and the annular
volume between the stainless steel outer jacket & the niobium housing.
A superconducting resonator must produce a very large electromagnetic field (voltage of many hundreds
of kilovolts) with a small amount of input power (few Watts). Under operating conditions several
thousand amperes of RF current flows on the niobium surface of the resonator. A defect (e.g. an inclusion
or weld porosity), even if microscopic in size, will produce RF losses that cause joule heating. If the
region heats just a few degrees, to 9.2 K, it loses superconductivity and the resonator quenches, that is – it
quits working. Therefore it is essential to have a niobium surface free of inclusions, fissures, folds,
scratches and weld porosity.
It is not possible to test resonator parts as they get fabricated. The only way to test fully is to complete
fabricating the entire resonator and then try to operate it. At this point, defects, even if they are repairable,
are very expensive, effort intensive and time consuming to fix. Therefore, if a problem is encountered
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 7 of 14
at any point during fabrication it is essential to: 1) stop the work, and, 2) call to IUAC's attention,
so that a fix, if it is possible, can be worked out. The highest cost and greatest delays can result from
"patching up" a job without full consultation with IUAC.
After machining, forming and Electron Beam Welding (EBW), all parts of the resonator are chemically
electropolished to remove approximately 0.2 mm from the upper layer of the surface of the niobium
material. Inclusions embedded underneath the surface that are deeper than 0.2 mm, will not get removed
during the chemical processing. Therefore it is very important to avoid deep inclusions.
Machining, Forming & Handling of Niobium components & SS outer jacket fabrication and TIG
welding (Bidder’s scope)
Niobium is a soft material which is easily machinable by taking due care. High speed steel (HSS) tools
are well suited for machining niobium. Carbide tools may also be used. All tools must be sharp to prevent
folding of the niobium material while machining. Cutting oils free of sulphur are recommended for
machining niobium for RF superconductivity applications. Cutting oils should be used only where they
can be easily flushed out. Ethanol or Isopropyl alcohol should be used where cleaning would be difficult.
Tools used on other materials should not be used for machining niobium. Exclusive set of tools,
meant only for machining niobium should be used. Polishing of all niobium parts should be done by hand
(no grinders!) using Al2O3 emery paper (220, 400, 600 grades) & Scotch Brite, to avoid smearing, folding
and inclusions. Separate set of files, marked exclusively for niobium, should only be used. Machined
parts must be handled carefully while sitting them up on tables/shelves. Niobium parts must always be set
on clean paper. They should be packed properly in zip lock bags or using plastic cling film and/or
aluminum foil. Tables and shelves must be kept clean and free of chips, dirt, sharp objects& tools.
Niobium forms very similar to copper. When forming and rolling the sheet metal, the dies and rollers
must be clean and free of oil, dirt and chips. Clean paper, such as tracing paper, may be used as a
protective layer when rolling to avoid the rollers coming in direct contact with the niobium material. All
fixtures used for holding niobium parts should be kept clean, free of oil, dirt and chips.
Electron Beam Welding (at IUAC)
All niobium welds are electron beam welds (EBW) performed in vacuum (<510-5 mbar) with 100%
penetration. The electron beam welding will be performed at IUAC. The radial fitting tolerance for
beam welding is typically <0.1 mm. Prior to welding; the niobium parts are de-greased and chemically
etched to remove the niobium oxide layer. This will be done at IUAC. After EBW, some resonator parts
may be radiographed and/or mechanically polished (by Bidder / IUAC). Thermal shocking (300 K to 77
K) followed by helium mass spectrometer leak testing shall be performed as required (by IUAC). The
bare niobium resonator will be electropolished and heat treated in vacuum at ~1000 C. All electron
beam welding, chemical electropolishing, heat treatment, thermal shocking, RF tuning and helium
leak testing will be done by IUAC.
SS Outer Jacketing & TIG welding (Bidder’s scope)
All stainless steel welds are TIG welds of cryogenic quality, i.e. they should be leak tight (at leak rates
<110-9 mbar.l/s) at 4.2 K (~269 ºC). The TIG welding must be performed by flushing both the external
and internal surfaces with inert gas. Filler rods of appropriate grade must be used. The entire TIG
welding job will be done by the Bidder at his site in the presence and under the supervision of
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 8 of 14
IUAC engineers.
Free Issue Materials
For fabrication of the superconducting Niobium Quarter Wave Resonators, Niobium Slow Tuner
Bellows, spare Niobium Loading Arms and Niobium Drift Tubes, IUAC will provide the following
materials to the Bidder:
1. Niobium material (Grade-1 & RRR) in the form of sheets, rods, ingots and tubes. The two grades
of niobium, namely Grade-1 and RRR Grade, will be marked by IUAC.
2. Stainless Steel material (SS-316L) in the form of sheets, rings, domes and pipe.
3. Niobium-Stainless Steel (Nb-SS) and Niobium-Copper (Nb-Cu) explosively bonded plates.
4. Set of dies and punches for forming the niobium components.
5. Several fixtures required for machining and fabrication.
6. CF (Con-flat) flanges with neck, VCR fittings etc.,
Fabrication and Final Assembly
The “Description of works” is given in Annexure-C. Please refer to drawing QWR-001-E (all
dimensions of QWR & Slow Tuner), Schematic-1 (QWR part identification), Schematic-2 (Bare Niobium
QWR), Schematic-3 (SS outer jacket assembly), and Schematic-4 (Slow Tuner Belolows) for all technical
details / dimensions / part names.
All drawings, design of the quarter wave resonator (QWR) are the exclusive property of Inter-University
Accelerator Centre (IUAC) New Delhi. Bidders are advised not to photocopy or reprint them except for
their requirements for this NIT. All necessary drawings may be collected along with the Tender document
from the Administrative Officer (S&P), IUAC.
The complete set of part / sub-assembly drawings of the QWR (and the Slow Tuner bellows) will be
provided along with the Purchase Order, to the successful Bidder only.
Accepted
(Signature & Stamp of Bidder)
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 9 of 14
Annexure-C
(IUAC/NIT/13/SSKS/2014-15)
Description of Works
Works to be done for six (06) Niobium Quarter Wave Resonators (QWR) along with their six (06) Slow Tuner Bellows, two (02) spare
Niobium Loading Arms, three (03) spare Niobium Drift Tubes and eight (08) spare Slow Tuner Bellows. Please refer: Drawing # QWR001-E (all dimensions of QWR & Slow Tuner Bellows), Schematic-1 (QWR part identification), Schematic-2 (Bare Niobium QWR), Schematic3 (SS Outer Jacket), and Schematic-4 (Slow Tuner Bellows) for all technical details.
S.No
01
02
03
04
05
06
07
08
09
10
11
12
13
14
DESCRIPTION
Niobium Outer Housing
Shearing of Niobium (Nb) Sheets
Rolling of Nb Outer Housing Cylinders
Edge machining of Nb Cylinders for seam welding
Shearing, machining and forming of Nb sheets for Nb Housing
Coupling Port (CP) Saddles
Cutting, machining and forming of Nb bar for Nb Housing
Beam Port (BP) Saddles
Shearing, machining and forming two halves of Nb sheets for
Nb Housing CP Saddle Extension Tube
Electron Beam Welding(EBW) of two halves for CP Saddle
Extension Tube
Bumping, rerolling and edge machining of CP Saddle Extension
Tube
EBW of CP saddle to the Extension Tube
EBW of Nb Outer Housing for long seam weld
Bumping and rerolling and edge machining of Nb Outer
Housing
Boring of Nb Outer Housing for CP + BP
Machining of CP + BP saddles to fit the Nb Outer Housing
EBW of Nb Outer Housing and CP & BP Saddles
Material
Thickness/D
iameter
(mm)
Total
QTY
Scope
(Bidder /
IUAC)
Nb -Grade-I
3.15
01
06
Bidder
3.15
01
01
02
06
06
12
Bidder
Bidder
Bidder
Nb -Grade-I
Nb -Grade-I
50.8
02
12
Bidder
Nb -Grade-I
3.15
02
12
Bidder
01
06
IUAC
01
06
Bidder
02
01
01
12
06
06
IUAC
IUAC
Bidder
06
12 + 12
06 + 24
Bidder
Bidder
IUAC
Unit QTY
01
02 + 02
01 + 04
Niobium Outer Housing assembly is complete
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 10 of 14
Central Conductor Assembly (Top Flange + Loading Arm +
Drift Tube) + 02 Loading Arms + 03 Drift Tubes
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Wire cutting of 172 mm dia. Nb bar for Top Flange
Top Flange Machining to nominal size
Shearing of Nb sheets for Loading Arm (LA) halves
Shearing of Niobium sheets for Drift Tube (DT) Cylinder
Forming and machining of LA halves
Rolling and machining of DT cylinder
Shearing, Machining of Niobium sheets for End Caps
Forming and edge machining of End Caps
Boring of End caps for Upper Caps
Forming and machining of Upper Caps
EBW of DT Cylinder
EBW of LA halves to make LA
Bumping, end machining of LA
Bumping, end machining and boring of DT Cylinder
Forming and machining of Drift Tube Beam Port Saddles
Machining of Nb tube for DT Beam Port Saddles
EBW of DT Beam Port Saddles to Beam Tube
EBW of End / Upper Caps, Beam Port Saddle assembly to DT
Edge machining of L A & DT
EBW of L A to DT assembly (Central Conductor)
Frequency tuning
Machining of Central Conductor and Top Flange
EBW of Central Conductor to Top Flange
Nb -RRR
Thickness/D
iameter
(mm)
17
Nb -RRR
Nb -RRR
3.15
1.6
Nb -RRR
3.15
Material
3.15
Nb-RRR
25.4
1.6 (WT)
Unit QTY
01
01
02
01
02
01
02
02
01
01
01
01
01
01
02
01
02+01
02+01+01
01+01
01+01
01+01
01+01
Total
QTY
06
06
12 + 04
06 + 03
12 + 04
06 + 03
12 + 06
12 + 06
06 + 03
06 + 03
06 + 03
06 + 02
06 + 02
06 + 03
12 + 06
06 + 03
06 + 03
06 + 03
06
06
06
06
Scope
(Bidder /
IUAC)
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
IUAC
IUAC
Bidder
Bidder
Bidder
Bidder
IUAC
IUAC
Bidder
IUAC
IUAC
Bidder
IUAC
Central Conductor Assembly, Loading Arms & Drift Tubes are complete
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 11 of 14
Bare Niobium Resonator
Material
01
02
03
04
Thickness/D
iameter
(mm)
Machining of Niobium Outer Housing + Top Flange
EBW of Niobium Outer Housing to Top Flange
Electropolishing of Bare Niobium Resonator assembly &
Frequency Tuning
Heat Treatment of Bare Niobium Resonator in High Vacuum
Furnace & Frequency Tuning
01+01
01+01
01
06
06
06
Scope
(Bidder /
IUAC)
Bidder
IUAC
IUAC
01
06
IUAC
Unit QTY
Total
QTY
Bare Niobium Resonator assembly is complete
Stainless Steel Jacket Assembly
Material
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
Shearing of Stainless Steel (SS) sheet
Rolling of SS Cylinder for jacketing
SS Jacket edge preparation before TIG Welding
SS Jacket TIG welding
Rerolling of SS Jacket after TIG welding
SS Jacket Boring for Transition Flange Collars (4)
Machining of SS Jacket Collars
TIG welding SS Jacket Collars
Slitting of SS Jacket into two halves
Machining of Top Dome
Machining of CF Flange with Neck
TIG welding of Top Dome + Neck
Forming and machining of Cooling Channels
Machining of Holding Clamps
Wire cut and machining of Open End flange
Wire cutting of Nb-SS plate for CP and BP Flanges
Machining of CP and BP Transition Flanges
Tender Document
IUAC/NIT/13/SSKS/2014-15
SS-316L
Thickness/D
iameter
(mm)
3
3
SS-316L
SS-316L
6
3
SS-316L
SS-316L
Nb-SS
Nb-SS
Nb-SS
2
35
6.35 + 20
6.35 + 12.7
6.35 + 12.7
Unit QTY
01
01
01
01
01
01
04
04
01
01
01
01+01
02
02
01
02+02
02+02
Total
QTY
06
06
06
06
06
06
24
24
06
06
06
06
12
12
06
12 +12
12 + 12
Scope
(Bidder /
IUAC)
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Bidder
Page 12 of 14
Final Assembling of Bare Niobium Resonator and SS Jacket
Material
01
02
03
04
05
06
07
08
09
10
11
12
Thickness/D
iameter
(mm)
Thermal shocking and Leak checking of SS bellows (for BP &
CP)
EBW of SS bellows to Transition Flanges (BP+CP)
Thermal shock and Leak checking of Bellows assembly
Machining of Bare Niobium Resonator’s Open End side and
Open End Flange to the final size
EBW of niobium side of Open End Flange to Bare Niobium
Resonator’s Open End
SS Jacket Tacking onto Bare Niobium Resonator (Clamp Shell
Assembly)
Machining of Nb Port Saddle Extensions and SS Collars of SS
jacketed Niobium Resonator
SS Jacket Top end machining
Tacking of Top Dome on to SS Jacket
EBW of Transition Flange to Port Saddle extension
Complete (final) TIG welding of SS Jacket seam weld & SS
side of Open End Flange + Transition Flanges to Collars +
Cooling Channels + VCR fittings + Holding Clamps+ Top
Dome
Leak checking of Fully fabricated resonator
Unit QTY
Total
QTY
02+02
12+12
Scope
(Bidder /
IUAC)
IUAC
02+02
04
01+01
12+12
24
06
IUAC
IUAC
Bidder
01+01
06
IUAC
01+01
06
Bidder
02+02
12+12
Bidder
06
06
24
06
Bidder
Bidder
IUAC
Bidder
01
01+01
04
01+04+02+
04+02 +01
IUAC
Fabrication of Quarter Wave Resonator is complete
Slow Tuner Bellows (06 + 08 = 14 Nos.)
Material
01
02
03
04
Wire cutting of Niobium-Copper (Nb-Cu) sheet for Slow Tuner
Bottom Flange
Machining of Slow Tuner Bottom Flange
Wire cutting of Nb-Cu sheet for Slow Tuner Top Disc
Machining of Slow Tuner Top Disc
Tender Document
IUAC/NIT/13/SSKS/2014-15
Nb-Cu
Nb-Cu
Nb-Cu
Nb-Cu
Thickness/D
iameter
(mm)
2.4 + 16
1.6 + 10
01
14
Scope
(Bidder /
IUAC)
Bidder
01
01
01
14
14
14
Bidder
Bidder
Bidder
Unit QTY
Total
QTY
Page 13 of 14
05
06
07
08
09
10
11
12
Shearing and machining of Nb sheet for Slow Tuner Bellow
Leaves
Chemical Etching of Copper from Slow Tuner Flange & Top
Disc
Forming and machining of Slow Tuner Bellow Leaves
Forming and machining of Slow Tuner Top Disc
Wire cutting of Nb tube for weld ring
Machining of Nb tube for weld ring
EBW of Slow Tuner Bellows Assembly (Top Disc + Bellows +
Weld Ring)
EBW of Slow Tuner Bellows Assembly to Nb-Cu Slow Tuner
Bottom Flange
Nb-RRR
Nb-RRR
0.8
0.8
1.6
63 dia.
03
42
Bidder
01
14
IUAC
03
01
01
01
14+14+14
42
14
14
14
14
Bidder
Bidder
Bidder
Bidder
IUAC
01+01
14
IUAC
Slow Tuner Bellows assembly is complete
Accepted
(Signature & Stamp of Bidder)
Tender Document
IUAC/NIT/13/SSKS/2014-15
Page 14 of 14