Market Survey. Technical Description. Supply of Long Austenitic Steel Shells for D2 Dipole Cold Masses

Transcription

1 EDMS No.: Document Ref.: LHC-LBRD-CS-0001 Group Code : TE-MSC The HL-LHC Project Market Survey Technical Description Supply of Long Austenitic Steel Shells for D2 Dipole Cold Masses Abstract This Market Survey concerns the supply of 18 austenitic steel shells for the D2 dipole cold masses. CERN will supply the raw material in the form of plates. This Market Survey will be followed by an invitation to tender to qualified and selected firms in Q4 2017, for a contract to be awarded in Q Delivery is foreseen to take place between 2019 and August 2017

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3 EDMS No.: i Table of Contents 1. INTRODUCTION Introduction to CERN Introduction to the HL-LHC Project SCOPE OF THE SUPPLY Deliverables and activities Facilities and Competencies Equipment and/or services made available by CERN REQUIREMENTS General description Technical requirements Dimensions and quantities Acceptance tests Documentation PERFORMANCE OF THE CONTRACT Delivery Schedule Contract Follow-Up and Progress Monitoring CERN CONTACT PERSONS ANNEXES Technical drawing Inspection Plan Other applicable documents... 5

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5 EDMS No.: INTRODUCTION 1.1 Introduction to CERN CERN, the European Organization for Nuclear Research, is an intergovernmental organization with over 20 Member States 1. Its seat is in Geneva but its premises are located on both sides of the French- Swiss border ( CERN s mission is to enable international collaboration in the field of high-energy particle physics research and to this end it designs, builds and operates particle accelerators and the associated experimental areas. At present more than scientific users from research institutes all over the world are using CERN s installations for their experiments. The accelerator complex at CERN is a succession of machines with increasingly higher energies. Each machine injects the beam into the next one, which takes over to bring the beam to an even higher energy, and so on. The flagship of this complex is the Large Hadron Collider (LHC) as presented on the CERN website: Introduction to the HL-LHC Project The Large Hadron Collider (LHC) is the most recent accelerator constructed on the CERN site. The LHC machine accelerates and collides proton beams but also heavier ions up to lead. It is installed in a 27 km circumference tunnel, about 100 m underground. The LHC design is based on superconducting twin-aperture cryo-magnets which operate in a superfluid helium bath at 1.9 K. High Luminosity LHC (HL-LHC) is a project aiming to upgrade the LHC collider after in order to maintain scientific progress and exploit its full capacity. By increasing its peak luminosity by a factor five over nominal value it will be able to reach a higher level of integrated luminosity, nearly ten times the initial LHC design target. To this aim, HL-LHC is exploring new beam configurations and new advanced technologies in the domain of superconductivity, cryogenics, radhard materials, electronics and remote handling. 2. SCOPE OF THE SUPPLY The purpose of this Market Survey is to identify potential bidders for the supply of 18 austenitic steel shells (2 prototype shells, and 16 series shells), 14 m long (see 3.1) (hereafter referred to in whole or in part as the supply ) for the D2 dipole cold masses. Only firms qualified and selected by CERN after analysis of their reply to this market survey will be included in the forthcoming invitation to tender. The supply shall originate from the CERN Member States, and under certain conditions as stipulated in the Qualification Questionnaire, from Associate Member States. 2.1 Deliverables and activities The supply shall include the following deliverables and activities for the austenitic steel shells: Prototyping; 1

6 2 EDMS No: Manufacturing; Testing and inspection; Technical documentation; Packing of the supply; Shipping to CERN. The supply shall include the following deliverables and activities for the tooling required for the production and dimensional inspection of the austenitic steel shells: Design; Prototyping; Manufacturing; Testing and inspection; Technical documentation; Manufacturing and maintenance; Packing and shipping to CERN if requested. 2.2 Facilities and Competencies The contractor shall have proven experience in forming steel sheets, of thickness of at least 6 mm and length of at least 12 m. The contractor shall have competencies in sheet metal working, and shall have tooling capable of forming shells of at least 14 m. 2.3 Equipment and/or services made available by CERN CERN will supply the raw material (i.e. EN , AISI 316LN) in the form of plates. 3. REQUIREMENTS 3.1 General description The shells are cylindrical half-tubes chamfered lengthways on their main edges. They have a thickness of 8 mm, and are formed with an inner diameter of 614 mm, with tight tolerance. The length of the shells is 14 m, and with a mass of approximately 900 kg (see drawing referred to in 6.1). 3.2 Technical requirements The most important features of the shells are the conformity of its inside surface to the nominal shape, i.e. the circularity of the inside surface, and its overall straightness. The length of the halfcircumference is to be controlled with great care as it plays a fundamental role. The manufacturing process intended to be used for forming and chamfering the shells shall be precisely described. The supply shall comply with the following parameters and conditions: Dimensions and tolerances given by the technical drawing (referred to in 6.1); The shells shall be produced as a seamless full-length continuous piece; The manufacturing process shall not degrade the surface finish of the semi-finished product (i.e. raw material steel plate);

7 EDMS No.: Surface marks, scratches, mill slivers or laminations, scales and any other deterioration or pollution of the surfaces during handling and/or manufacturing are forbidden. Any trace of coloured oxide shall be removed wherever necessary, but the grinding operation shall be carried out smoothly in order not to provoke undesirable under-size areas (i.e. deep marks); The shells shall be delivered pickled, free of grease and thoroughly cleaned; The contractor shall form the shell so as to maintain the original marking of the semi-finished product visible on the outside of the shell; Each shell shall be marked on the outside with a serial number allowing its traceability and a correct pairing at the cold mass construction stage. Deep engraving is forbidden. Therefore, permanent ink marking shall be applied for the regular shell production; 3.3 Dimensions and quantities Dimensions and quantities are summarised in Table Acceptance tests Table 1: Summary of shells Number of required shells [units] 18 Main dimension of shells [mm] Main dimensions of raw material plates [mm] Length Inner radius 307 Wall thickness 8 Length Width 1400 Thickness 8 The contractor shall check the final sizes of the shells to demonstrate their conformity to the respective reference drawings. The wall thickness and the shape of the inner surface shall be checked along the entire shell, every 500 mm. At least three measurements of the wall thickness shall be provided in each section of measurements, at the bottom and along the bevel-edges of the shell. The straightness along the beveledges (i.e. root surfaces) shall be checked. Whatever the measuring technique, these three measurements shall be provided every 500 mm along the entire shell. The half-circumference (i.e. developed length) of the shells shall be measured each 500 mm, starting at 25 mm from the ends. The bevel angle shall be measured every 1000 mm. For all the above-mentioned dimensional checks, the contractor shall describe precisely the measuring techniques, tooling and instruments to be used to reach the necessary level of precision. All checks, and proposed devices to be used for measurements are summarised in Documentation The contractor shall provide all the documents and records enumerated in this technical description and those required for the follow-up of the production of the supply. The records and documents shall be stored by the contractor in a CERN information system.

8 4 EDMS No: PERFORMANCE OF THE CONTRACT 4.1 Delivery Schedule The contract is scheduled to be awarded in the first quarter of 2018 following the invitation to tender which is planned to be issued in the fourth quarter of The supply shall be delivered to CERN, within the schedule proposed in Table 2. The dates proposed in the schedule represent respective first and last delivery dates, while a peak delivery rate of four shells per month shall be assumed. In this regard, the contractor could group pairs of shells for their delivery ahead of time. The detailed production planning will be defined in agreement with the contractor. Table 2: Delivery schedule. Expected delivery date [mm/yyyy] Prototype pair 03/2018 First series pair 05/2019 Last series pair 05/ Contract Follow-Up and Progress Monitoring The Contractor shall assign a technical responsible for the technical execution of the contract and its follow-up, as well as a person responsible for the commercial follow-up, throughout the duration of the contract. They shall be able to communicate in one of the official languages of CERN (English or French). 5. CERN CONTACT PERSONS Persons to be contacted for technical matters: Name/Department/Group Tel Dr. José Luis Rudeiros Fernández TE/MSC Tel: Jose.Rudeiros@cern.ch In case of absence: Mr. Hervé Prin TE/MSC Tel: Herve.Prin@cern.ch Persons to be contacted for commercial matters: Name/Department/Group Tel Mr. Jérôme Pierlot IPT/PI Tel: Jerome.Pierlot@cern.ch In case of absence: Mr. Ivo Lobmaier IPT/PI Tel: Ivo.Lobmaier@cern.ch

9 EDMS No.: ANNEXES 6.1 Technical drawing The technical drawing LHCLMBRD0021 shall be used only for the purpose of this market survey. Modifications might be made to these drawings before the contract is placed. Only the drawings labelled FOR EXECUTION, duly dated and signed, shall be used for manufacturing. 6.2 Inspection Plan The geometrical control of the shells along their manufacturing is summarised in Table 3. Feature Straightness of the root surface Inner profile tolerance Developed length of the inner surface Straightness of the half shell axis Table 3: Manufacturing geometrical control details. Measurement steps along the full length - State of the part Both, free and restrained states 500 mm Free state 500 mm Restrained state Device proposed by CERN for measurement - Calibres (mini and maxi) Developed length measuring strip device - Restrained state - Bevel angles 1000 mm Restrained state Angle measuring device Wall thickness (measured by CERN) Width of the bevel edges Three different locations in each section every 500 mm 250 mm Optical measuring device 6.3 Other applicable documents Stainless steel plates for the shells of the cold masses of superconductive dipole magnets: EDMS No.: