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Coupling Magnet Cryostat Mechanical Structure Design and Manufacture. Caoyun, Wangli, Sunsen 2010-12-09 Shanghai Institute of Applied Physics Chinese Academy of Sciences P. R. China. 插入一张总装图. The Overall Structure. Interface with RF cavity. Cold mass vessel. Cold mass support.

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slide1
Coupling Magnet Cryostat

Mechanical Structure Design and Manufacture

Caoyun, Wangli, Sunsen

2010-12-09

Shanghai Institute of Applied Physics

Chinese Academy of Sciences

P. R. China

slide2
插入一张总装图

The Overall Structure

slide3
Interface with RF cavity

Cold mass vessel

Cold mass support

The gap is 2mm

Welding joint

RF chamber gussets

RF coupler

The gap is 4mm

Vacuum port

8- M16 bolts support cold mass vessel

Cold mass vessel

slide4
Vacuum ports

Auxiliary port

Pirani gauge

Auxiliary port

pump

Hot cathode gauge

Auxiliary port

Auxiliary port

slide6
Main shield structure:

Weld

Cu-Al bimetal

Disassembly cover

The gap between upper and down is 2mm

6mm

4mm

G10 insulated shutter

The gap is 10mm

slide7
The top of shield :

First piece

Second piece

third piece

weld ?

Not a single piece

SS bar

The hole for cable

Demountable access openings

weld ?

slide8
The support of shield:

Joint glued by Epoxy

All around weld

Spring washers 补偿冷收缩

slide9
Thermal joint of shield

Thermal joints

Local shield

slide10
GAP

Between the shield and mass

Between the shield and vessel

Between shield and down He container

Between shield and mass support

Min. gap

slide11
Load cell for cold mass support

Spherical washer

Load sensor

Connect with vacuum vessel support sleeve

Connect with cold mass support cold base

slide12
制造工艺考虑

主真空室制造

以中间圆孔为基准加工侧板八孔

加工中间圆孔和侧板基准

真空室周边板焊接

定位支撑筒、点焊

定位支撑筋板、点焊

焊接支撑筒和筋板

以中间圆孔和侧板为基准加工8个支撑筒支撑面、上法兰大平面

加工中间圆孔和侧板基准

slide13
Fabrication of thermal shield

与冷质量组装后焊接

三面焊接

slide14
组装工艺考虑:

线圈及冷却管路检漏及低温调试

冷屏

机械中心转移

冷质量及屏

冷质量组件

上真空室制造、检漏

冷却组件焊接、检漏

下真空室制造、检漏

装入拉带、调整冷质量位置、中心转移

装拉紧杆,装箱

运到美国

低温调试

总装组焊

slide16
Alignment

将轴线和中分平面数据转移到支座8个点上。

8个转移点

测量内环面和两侧面,求出冷质量轴线和中分平面,建立坐标系。

伸展距离2400

slide17
冷质量机械中心转移

冷质量靶标点

共8点

真空室上靶标座

16点

焊接在真空室外的靶标座

slide18
Transport form Beijing to USA.

First: enclose this screw bar

Second : put the tilted flange on the vessel

Third : screw the Spherical nut

Pull force

Reach USA.

Take down this bar and flange

Blind flange or vacuum port

slide19
Air-ferry?

Max. width :2769

Max. height:3017

slide21
Thank You !

Icst.hit.edu.cn

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