CN212822683U - Sheath for hot isostatic pressing - Google Patents
Sheath for hot isostatic pressing Download PDFInfo
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- CN212822683U CN212822683U CN202021418500.4U CN202021418500U CN212822683U CN 212822683 U CN212822683 U CN 212822683U CN 202021418500 U CN202021418500 U CN 202021418500U CN 212822683 U CN212822683 U CN 212822683U
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Abstract
The utility model provides a hot isostatic pressing sheath, which comprises a sheath body, an upper cover plate and a lower cover plate; the sleeve body is of a structure with openings at the upper end and the lower end, the upper cover plate and the upper end opening of the sleeve body are the same in shape, and the lower cover plate and the lower end opening of the sleeve body are the same in shape; the upper cover plate and the lower cover plate are both of a plane plate-shaped structure, the upper cover plate is embedded into the upper end opening of the sleeve body and is connected with the sleeve body, and the lower cover plate is embedded into the lower end opening of the sleeve body and is connected with the sleeve body. The upper cover plate and the lower cover plate of the sheath for hot isostatic pressing are both of planar platy structures, no raised edge structure is arranged, the sheath for hot isostatic pressing can be obtained by connecting the upper cover plate and the lower cover plate with the sheath body through flat welding, the problem that the density of the upper end and the lower end of a powder target blank does not reach the standard is avoided, the utilization rate of raw materials and the yield of the powder target blank are improved, and the cost investment for preparing the sheath is saved.
Description
Technical Field
The utility model belongs to the technical field of the hot isostatic pressure, relate to the hot isostatic pressure accessory, especially relate to a canning for hot isostatic pressure.
Background
Hot Isostatic Pressing (HIP) means that a product is placed in a closed container, a powder blank in a sheath is subjected to degassing treatment at a certain temperature and a certain vacuum degree to ensure the vacuum atmosphere in the sheath, then the same pressure in all directions is applied, and simultaneously high temperature is applied, so that the product can be sintered and densified under the action of high temperature and high pressure. The powder hot isostatic pressing material generally has a uniform fine grain structure, can avoid the macrosegregation of cast ingots, and improves the technological property and the mechanical property of the material. The hot isostatic pressing process has the advantages of integration of hot pressing and isostatic pressing, low forming temperature, compact product and excellent performance, and is often used for preparing alloy target materials required by semiconductor magnetron sputtering.
In the hot isostatic pressing process, the sheath is an important tool, is a key for ensuring the performance of the powder product, and meets the conditions of good stability, no pollution to the product in a high-temperature environment and the like. At present, the sheath generally comprises a sheath body and an upper cover plate and a lower cover plate. In order to facilitate welding of the cover plate and the sleeve body, the upper cover plate and the lower cover plate are both provided with the edge-starting structures, and after the upper cover plate and the lower cover plate are assembled with the sleeve body, the edge-starting structures are in contact with the inner surface of the sleeve body, so that the contact area is increased, the welding area is increased, and the welding strength is guaranteed. However, the problem that the thicknesses of the upper starting edge structure and the lower starting edge structure of the sheath obtained by welding are too thick results in difficult powder density forming of the upper end and the lower end in the sheath, so that the parts of the powder target blank with the density not reaching the standard can only be scrapped, raw materials are wasted, and the yield is reduced.
For example, CN205221522U discloses a sheath device for containing a hot isostatic pressing neutron absorbing material, where the sheath device includes a sheath body with openings at both upper and lower ends, a lower cover fixedly installed at the opening at the lower end of the sheath body, and an upper cover fixedly installed at the opening at the upper end of the sheath body, a material containing space is formed between a lower end surface of the upper cover, an upper end surface of the lower cover, and an inner surface of the sheath body, a charging opening is opened on the upper cover, and the hot isostatic pressing neutron absorbing material is charged into the material containing space through the charging opening. The upper cover and the lower cover of the sheath device are both provided with the edge-starting structures, so that the powder target blank obtained by hot isostatic pressing still has the problem that the density of the upper end and the lower end of the powder target blank does not reach the standard.
CN210335648U discloses a capsule for hot isostatic pressing molding of grinding material powder, which comprises an upper protective frame, a lower protective frame, an inner capsule and an outer capsule; the outer canning is cylindrical barrel, goes up and protects the frame and set up the upper and lower both ends of outer canning respectively with protecting the frame down, the welding has interior canning on the inner wall of outer canning, and the welding of the upper and lower both ends of interior canning has last laminating layer and lower laminating layer, goes up laminating layer and lower laminating layer setting inside outer canning, it is provided with inlet pipe and vacuum tube to go up laminating layer, and inlet pipe and vacuum tube extend and protect the frame outside. The upper protective frame and the lower protective frame of the sheath are both provided with the edge-starting structures, so that the powder target blank obtained by hot isostatic pressing still has the problem that the density of the upper end and the lower end does not reach the standard.
CN206652973U discloses a tubular sheath for hot isostatic pressing, including the sheath wall and the exhaust tube of fixed setting on the sheath wall, the sheath wall includes pipy outer wall, sets up the pipy inner wall in outer wall center department, and the upper and lower both ends of inner wall and outer wall are respectively through stifled ring and stifled ring fixed connection down, and inner wall, outer wall, stifled ring and stifled ring enclose out pipy raw material chamber down jointly, the section that blocks up the ring down is "U" type structure and opening outwards, "the vertical part of U" type is laminated and welded fastening with inner wall and outer wall respectively, it is the same with stifled ring's structure down to go up stifled ring. The upper blocking ring and the lower blocking ring of the tubular sheath are both provided with an edge-raising structure, so that the powder target blank obtained by hot isostatic pressing still has the problem that the density of the upper end and the lower end does not reach the standard.
In view of the foregoing, there is a need to develop a new capsule for hot isostatic pressing, which can improve the utilization of raw materials and the yield of powder target blanks.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art exists, the utility model provides a canning for hot isostatic pressing saves the hot isostatic pressing is with playing the limit structure of the upper and lower apron of canning, and apron is plane platelike structure about promptly, then adopts the tack weld to lap about with the cover body and be connected and obtain the canning for hot isostatic pressing. The upper end and the lower end of the sheath for hot isostatic pressing avoid the problem of over-thick thickness of the starting edge structure, prevent the problem of substandard density of the upper end and the lower end of the powder target blank, and improve the utilization rate of raw materials and the yield of the powder target blank; moreover, compare in prior art with the sheath for the hot isostatic pressing of specification, the hot isostatic pressing has saved the cost input of preparation sheath with the sheath.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model aims to provide a hot isostatic pressing sheath, which comprises a sheath body, an upper cover plate and a lower cover plate; the sleeve body is of a structure with openings at the upper end and the lower end, the upper cover plate and the upper end opening of the sleeve body are the same in shape, and the lower cover plate and the lower end opening of the sleeve body are the same in shape; the upper cover plate and the lower cover plate are both of a plane plate-shaped structure, the upper cover plate is embedded into the upper end opening of the sleeve body and is connected with the sleeve body, and the lower cover plate is embedded into the lower end opening of the sleeve body and is connected with the sleeve body; the upper cover plate is provided with an air exhaust hole.
The sheath for hot isostatic pressing of the utility model saves the edge-rising structures of the upper and lower cover plates, namely the upper and lower cover plates are of a planar plate-shaped structure, and then the sheath for hot isostatic pressing is obtained by connecting the upper and lower cover plates with the sheath body by adopting the flat welding, thereby avoiding the problem that the density of the upper and lower ends of the powder target blank does not reach the standard due to the over-thick thickness of the edge-rising structure, and improving the utilization rate of raw material powder and the yield of the hot isostatic pressing semiconductor powder target blank; moreover, compare in prior art with the sheath for the hot isostatic pressing of specification, the hot isostatic pressing has saved the cost input of preparation sheath with the sheath.
Following conduct the utility model discloses preferred technical scheme, nevertheless do not conduct the utility model provides a technical scheme's restriction, through following technical scheme, can reach and realize better the utility model discloses a technical purpose and beneficial effect.
As a preferred technical solution of the present invention, the upper cover plate is embedded into the upper end opening of the sleeve body and is connected with the sleeve body by welding; the lower cover plate is embedded into the upper end opening of the sleeve body and is connected with the sleeve body through welding.
The welding method of the utility model is a known welding method in the prior art, preferably argon arc welding, and the technicians in the field can reasonably select the argon arc welding method according to actual conditions.
As the preferred technical scheme of the utility model, the upper end opening and the lower extreme open-ended shape of the cover body are the same, are circular, rectangle or concentric ring shape.
As the utility model discloses preferred technical scheme, the upper end opening of the cover body and lower extreme open-ended shape are concentric annular, the cover body includes the tubulose outer wall and sets up the tubulose inner wall of tubulose outer wall center department.
As the utility model discloses preferred technical scheme, the center department of tubulose inner wall still is provided with cylindric plug, the lateral wall of plug with the tubulose inner wall is laminated mutually.
In a preferred embodiment of the present invention, the sheath is an aluminum sheath or an aluminum alloy sheath, and the thickness is 2.5-3.5mm, such as 2.5mm, 2.7mm, 2.9mm, 3mm, 3.2mm, 3.4mm, or 3.5mm, but not limited to the values listed, and other values not listed in the range of the values are also applicable.
In a preferred embodiment of the present invention, the upper cover plate is an aluminum upper cover plate or an aluminum alloy upper cover plate, and has a thickness of 2.5-3.5mm, for example, 2.5mm, 2.7mm, 2.9mm, 3mm, 3.2mm, 3.4mm, or 3.5mm, but is not limited to the values listed, and other values not listed in the numerical range are also applicable.
In a preferred embodiment of the present invention, the lower cover plate is an aluminum lower cover plate or an aluminum alloy lower cover plate, and has a thickness of 2.5-3.5mm, for example, 2.5mm, 2.7mm, 2.9mm, 3mm, 3.2mm, 3.4mm, or 3.5mm, but is not limited to the values listed, and other values not listed in the numerical range are also applicable.
As the preferred technical scheme of the utility model, the sheath for hot isostatic pressing still includes the exhaust tube, is used for taking out the gas in the sheath for hot isostatic pressing.
In a preferred embodiment of the present invention, the exhaust tube is an aluminum exhaust tube or an aluminum alloy exhaust tube, and has a thickness of 3-4mm, such as 3mm, 3.2mm, 3.4mm, 3.5mm, 3.7mm, 3.9mm, or 4mm, but not limited to the values listed, and other values not listed in the numerical range are also applicable.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model provides a hot isostatic pressing uses the canning, saves the play limit structure of the upper and lower apron of the canning for hot isostatic pressing, and the upper and lower apron is plane platelike structure promptly, then adopts the flat welding to connect upper and lower apron and cover body and obtain the canning for hot isostatic pressing, the problem that play limit structure department thickness is too thick has all been avoided at the upper and lower both ends of the canning for hot isostatic pressing, has prevented the problem that powder target blank upper and lower both ends compactness is not up to standard, has improved the utilization ratio of raw and other materials and the yield of powder target blank;
(2) the utility model provides a canning for hot isostatic pressing saves the hot isostatic pressing is with playing the limit structure of the upper and lower apron of canning, compares in the canning for hot isostatic pressing of the same specification among the prior art, has saved the cost input of preparation canning.
Drawings
FIG. 1 is a schematic cross-sectional view of a hot isostatic pressing capsule as described in example 1;
FIG. 2 is a schematic cross-sectional view of a hot isostatic pressing capsule according to example 2;
FIG. 3 is a schematic cross-sectional view of a hot isostatic pressing capsule according to comparative example 1;
FIG. 4 is a schematic cross-sectional view of a hot isostatic pressing capsule according to comparative example 2;
wherein, 1-sleeve body; 2-upper cover plate; 3-lower cover plate; 4-air extraction holes; 5-an air exhaust pipe; 11-a tubular outer wall; 12-a tubular inner wall; 13-core rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, inside, outside, etc.) are involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed accordingly.
The following are typical but non-limiting examples of the present invention:
example 1
This example provides a capsule for hot isostatic pressing for producing a cylindrical iron-cobalt-tantalum alloy sputtering target blank disclosed in CN108004515A, having a diameter of 227mm and a height of 160mm, as shown in fig. 1, comprising a capsule body 1, an upper cover plate 2 and a lower cover plate 3; the sleeve body 1 is of a structure with openings at the upper end and the lower end, the upper cover plate 2 is the same as the upper opening of the sleeve body 1 in shape, and the lower cover plate 3 is the same as the lower opening of the sleeve body 1 in shape; the upper cover plate 2 and the lower cover plate 3 are both of a plane plate-shaped structure, the upper cover plate 2 is embedded into an upper end opening of the sleeve body 1 and is connected with the sleeve body 1, and the lower cover plate 3 is embedded into a lower end opening of the sleeve body 1 and is connected with the sleeve body 1; the upper cover plate 1 is provided with an air exhaust hole 4;
the upper cover plate 2 is embedded into an upper end opening of the sleeve body 1 and is connected with the sleeve body 1 through argon arc welding; the lower cover plate 3 is embedded into an upper end opening of the sleeve body 1 and is connected with the sleeve body 1 through argon arc welding;
the upper end opening and the lower end opening of the sleeve body 1 are the same in shape and are both circular;
the sleeve body 1 is an aluminum alloy sleeve body, the thickness is 3mm, and the height is 166 mm;
the upper cover plate 2 is an aluminum alloy upper cover plate, and the thickness is 3 mm;
the lower cover plate 3 is an aluminum alloy lower cover plate and is 3mm thick;
the hot isostatic pressing sheath further comprises an exhaust tube 5 for exhausting gas in the hot isostatic pressing sheath, wherein the exhaust tube 5 is an aluminum alloy exhaust tube and is 3.5mm thick.
The utilization rate of the raw materials of the powder target blank prepared by the sheath for hot isostatic pressing in the embodiment is 96.92%; and the starting edge structures of the upper cover plate and the lower cover plate of the hot isostatic pressing sheath are omitted, and compared with the hot isostatic pressing sheath with the same specification in the prior art, the cost investment for preparing the sheath is saved.
Example 2
This example provides a capsule for hot isostatic pressing for producing a tubular iron-cobalt-tantalum alloy sputtering target blank disclosed in CN108004515A, having an outer diameter of 227mm, an inner diameter of 167mm, and a height of 160mm, as shown in fig. 2, the capsule for hot isostatic pressing comprising a capsule body 1, an upper lid plate 2, and a lower lid plate 3; the sleeve body 1 is of a structure with openings at the upper end and the lower end, the upper cover plate 2 is the same as the upper opening of the sleeve body 1 in shape, and the lower cover plate 3 is the same as the lower opening of the sleeve body 1 in shape; the upper cover plate 2 and the lower cover plate 3 are both of a plane plate-shaped structure, the upper cover plate 2 is embedded into an upper end opening of the sleeve body 1 and is connected with the sleeve body 1, and the lower cover plate 3 is embedded into a lower end opening of the sleeve body 1 and is connected with the sleeve body 1; the upper cover plate 1 is provided with an air exhaust hole 4;
the upper cover plate 2 is embedded into an upper end opening of the sleeve body 1 and is connected with the sleeve body 1 through argon arc welding; the lower cover plate 3 is embedded into an upper end opening of the sleeve body 1 and is connected with the sleeve body 1 through argon arc welding;
the upper end opening and the lower end opening of the sleeve body 1 are the same in shape and are concentric and annular; the sleeve body comprises a tubular outer wall 11 and a tubular inner wall 12 arranged at the center of the tubular outer wall, the thickness of the tubular outer wall 11 is 3mm, and the thickness of the tubular inner wall 12 is 3 mm; a cylindrical core rod 13 is further arranged at the center of the tubular inner wall 12, and the side wall of the core rod 13 is attached to the tubular inner wall 12;
the sleeve body 1 comprising the tubular outer wall 11 and the tubular inner wall 12 is an aluminum sleeve body, and the height is 166 mm;
the upper cover plate 2 is an aluminum upper cover plate, and the thickness is 3 mm;
the lower cover plate 3 is an aluminum lower cover plate and is 3mm thick;
the hot isostatic pressing sheath further comprises an exhaust tube 5 used for exhausting gas in the hot isostatic pressing sheath, wherein the exhaust tube 5 is an aluminum exhaust tube and is 3mm thick.
The utilization rate of the raw materials of the powder target blank prepared by the sheath for hot isostatic pressing in the embodiment is 95.38%; and the starting edge structures of the upper cover plate and the lower cover plate of the hot isostatic pressing sheath are omitted, and compared with the hot isostatic pressing sheath with the same specification in the prior art, the cost investment for preparing the sheath is saved.
Comparative example 1
This comparative example provides a capsule for hot isostatic pressing for producing a cylindrical iron-cobalt-tantalum alloy sputtering target blank disclosed in CN108004515A, having a diameter of 227mm and a height of 160mm, as shown in fig. 3, except that the upper lid plate 2 and the lower lid plate 3 are both provided with a flange structure, and the other conditions are exactly the same as in example 1, as follows:
the sleeve body 1 is an aluminum alloy sleeve body, the thickness is 3mm, and the height is 200 mm;
the upper cover plate 2 is an aluminum alloy upper cover plate, the thickness of the upper cover plate is 3mm, and the edge is provided with an edge-starting structure with the height of 20 mm; the section of the upper cover plate 2 is U-shaped, the opening of the upper cover plate is outward, and the vertical part of the U-shaped is attached to the inner wall of the sleeve body 1 and is connected with the sleeve body 1 through argon arc welding;
the lower cover plate 3 is an aluminum alloy upper cover plate, the thickness of the lower cover plate is 3mm, and the edge is provided with an edge-rising structure with the height of 20 mm; the section of the lower cover plate 3 is U-shaped and has an outward opening, and the vertical part of the U-shaped is attached to the inner wall of the sleeve body 1 and is connected with the sleeve body 1 through argon arc welding.
The density of the powder target blank prepared by the sheath for hot isostatic pressing in the embodiment is not up to standard, and the upper end and the lower end of the powder target blank are respectively provided with a part with the thickness of about 20mm, so that the utilization rate of raw materials is only 69.23%; in addition, the upper cover plate and the lower cover plate are both provided with the edge-starting structures, so that the height of the sheath body is correspondingly increased, and the cost investment for preparing the sheath is increased.
Comparative example 2
This comparative example provides a capsule for hot isostatic pressing for producing a cylindrical iron-cobalt-tantalum alloy sputtering target blank disclosed in CN108004515A, having a diameter of 227mm and a height of 160mm, as shown in fig. 4, except that the upper lid plate 2 and the lower lid plate 3 are both provided with a flange structure, and the other conditions are exactly the same as in example 1, as follows:
the sleeve body 1 is an aluminum alloy sleeve body, the thickness is 3mm, and the height is 166 mm;
the upper cover plate 2 is an aluminum alloy upper cover plate, the thickness of the upper cover plate is 3mm, and the edge is provided with an edge-starting structure with the height of 20 mm; the section of the upper cover plate 2 is U-shaped, the opening of the upper cover plate is inward, and the vertical part of the U-shaped is attached to the inner wall of the sleeve body 1 and is connected with the sleeve body 1 through argon arc welding;
the lower cover plate 3 is an aluminum alloy upper cover plate, the thickness of the lower cover plate is 3mm, and the edge is provided with an edge-rising structure with the height of 20 mm; the section of the lower cover plate 3 is U-shaped and has an inward opening, and the vertical part of the U-shaped is attached to the inner wall of the sleeve body 1 and is connected with the sleeve body 1 through argon arc welding.
The density of the powder target blank prepared by the sheath for hot isostatic pressing in the embodiment is not up to the standard, and the utilization rate of the raw material is 73.66%; in addition, the upper cover plate and the lower cover plate are both provided with the edge-starting structures, so that the height of the sheath body is correspondingly increased, and the cost investment for preparing the sheath is increased.
To sum up, the utility model provides a hot isostatic pressing can, leave out the structure of playing the limit of the upper and lower apron of hot isostatic pressing can, namely upper and lower apron is the plane platelike structure, then adopt the flat welding to link upper and lower apron and cover body and obtain the hot isostatic pressing can, the problem that the thickness of the department of playing the limit structure is too thick has all been avoided at the upper and lower both ends of hot isostatic pressing can, has prevented the problem that the upper and lower both ends compactness of powder target base is not up to standard, has improved the utilization ratio of raw and other materials and the yield of powder target base; and the starting edge structures of the upper cover plate and the lower cover plate of the hot isostatic pressing sheath are omitted, and compared with the hot isostatic pressing sheath with the same specification in the prior art, the cost investment for preparing the sheath is saved.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (10)
1. A hot isostatic pressing capsule, comprising a capsule body, an upper cover plate, and a lower cover plate; the sleeve body is of a structure with openings at the upper end and the lower end, the upper cover plate and the upper end opening of the sleeve body are the same in shape, and the lower cover plate and the lower end opening of the sleeve body are the same in shape; the upper cover plate and the lower cover plate are both of a plane plate-shaped structure, the upper cover plate is embedded into the upper end opening of the sleeve body and is connected with the sleeve body, and the lower cover plate is embedded into the lower end opening of the sleeve body and is connected with the sleeve body; the upper cover plate is provided with an air exhaust hole.
2. The capsule according to claim 1, wherein the upper cover plate is fitted into an upper end opening of the capsule body and joined to the capsule body by welding; the lower cover plate is embedded into the upper end opening of the sleeve body and is connected with the sleeve body through welding.
3. The capsule according to claim 1, wherein the capsule body has an upper end opening and a lower end opening that are the same shape and are each circular, rectangular, or concentric rings.
4. The capsule according to claim 3, wherein the capsule body has an upper end opening and a lower end opening both in the shape of concentric rings, and the capsule body includes a tubular outer wall and a tubular inner wall disposed at the center of the tubular outer wall.
5. The capsule according to claim 4, wherein a cylindrical core rod is further provided at the center of the tubular inner wall, and a side wall of the core rod is in contact with the tubular inner wall.
6. The capsule according to claim 1, wherein the capsule is an aluminum capsule or an aluminum alloy capsule having a thickness of 2.5 to 3.5 mm.
7. The capsule according to claim 1, wherein the upper cover plate is an aluminum or aluminum alloy upper cover plate having a thickness of 2.5-3.5 mm.
8. The capsule according to claim 1, wherein the lower cover plate is an aluminum lower cover plate or an aluminum alloy lower cover plate and has a thickness of 2.5-3.5 mm.
9. The capsule of claim 1, further comprising an extraction tube for extracting gas from within the capsule.
10. The capsule according to claim 9, wherein the pump tube is an aluminium pump tube or an aluminium alloy pump tube and has a thickness of 3-4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021418500.4U CN212822683U (en) | 2020-07-17 | 2020-07-17 | Sheath for hot isostatic pressing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021418500.4U CN212822683U (en) | 2020-07-17 | 2020-07-17 | Sheath for hot isostatic pressing |
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| CN212822683U true CN212822683U (en) | 2021-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433842A (en) * | 2022-03-03 | 2022-05-06 | 宁波江丰热等静压技术有限公司 | Sheath for hot isostatic pressing |
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2020
- 2020-07-17 CN CN202021418500.4U patent/CN212822683U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433842A (en) * | 2022-03-03 | 2022-05-06 | 宁波江丰热等静压技术有限公司 | Sheath for hot isostatic pressing |
| CN114433842B (en) * | 2022-03-03 | 2024-05-28 | 宁波江丰热等静压技术有限公司 | Sheath for hot isostatic pressing |
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