公开(公告)号：US4178178A

公开(公告)日：1979-12-11

申请号：US856535

申请日：1977-12-01

Applicant: Tore Garvare ,  Sven-Erik Isaksson

Inventor： Tore Garvare ,  Sven-Erik Isaksson

IPC: B22F3/14 ,  B22F3/12 ,  B22F3/15 ,  B30B11/00 ,  B22F3/00 ,  B22F3/16

CPC classification number: B22F3/15 ,  B22F3/1258

Abstract: Disclosed is a method and structure for manufacturing solid bodies from a quantity of powder. The powder is preformed and the preform is enclosed in a casing provided with an evacuation nozzle. The preform and the casing are preheated and the preform is degassed by evacuating the casing through the nozzle after the casing has been appropriately evacuated. The nozzle is then sealed by heating the same to forging temperatures, compressing the end thereof which is remote from the casing, cutting the compressed end of the nozzle to present a straight edge and thereafter welding the nozzle shut along said edge. After the nozzle has been sealed the same is enclosed in and surrounded by a gas tight hood and the space between the hood and the nozzle is filled with a fill material which may be a powder, an annular solid body or a combination of such body and a quantity of powder. After the nozzle has been appropriately shielded and covered by the hood and fill material, the casing with the powder preform therein is placed in a high pressure furnace where the preform is subjected to isostatic high pressure hot pressing.

Abstract translation: 公开了一种从一定数量的粉末制造固体的方法和结构。 预成型粉末，将预成型件封闭在设有排气喷嘴的壳体中。 预成型件和套管被预热，并且在壳体被适当地抽空之后，通过将套管抽出通过喷嘴将预制件脱气。 然后通过将喷嘴加热至锻造温度，将其远离壳体的端部压缩，切割喷嘴的压缩端以呈现直线边缘，然后沿着所述边缘焊接喷嘴来密封喷嘴。 在喷嘴被密封之后，它被封闭并被气密罩围绕，并且罩和喷嘴之间的空间填充有填充材料，填充材料可以是粉末，环形固体或这种主体和 一定数量的粉末。 在喷嘴被罩盖和填充材料适当地屏蔽并覆盖之后，将其中具有粉末预制件的壳体放置在高压炉中，其中预成型件经受等静压高压热压。

公开(公告)号：US4485961A

公开(公告)日：1984-12-04

申请号：US479085

申请日：1983-03-25

Applicant: Ragnar Ekbom ,  Tore Garvare

Inventor： Ragnar Ekbom ,  Tore Garvare

IPC: B23K20/00 ,  B23K20/02 ,  B22F7/08

CPC classification number: B23K20/021

Abstract: A method of joining together component parts of a solid, preferably metallic, material into a composite element by hot isostatic pressing involves forming the parts so that good contact is obtained between surfaces at a joint where the surfaces are to be joined together. The joint is covered by a layer of a powder or a mixture of powder with substantially the same composition as the material in the different component parts. This powder layer is covered by one or more layers of glass powder, which upon heating forms a gas-impermeable layer. Between the powder layer covering the joint and a glass powder layer nearest to said layer there may be applied an intermediate layer of a powder having a melting point which is above the temperature to be used for the isostatic pressing. The assembly of parts and layers is pressed isostatically in a known manner at such a temperature that diffusion bonding is achieved at the contact surfaces.

Abstract translation: 通过热等静压将固体，优选金属材料的组成部分接合到复合元件中的方法包括形成部件，使得在要被接合在一起的接头处的表面之间获得良好的接触。 接头由与不同组成部分中的材料基本上相同组成的粉末层或粉末混合物覆盖。 该粉末层被一层或多层玻璃粉末覆盖，加热时形成不透气层。 在覆盖接头的粉末层和最接近所述层的玻璃粉末层之间，可以施加熔点高于用于等静压的温度的粉末的中间层。 部件和层的组装是以已知的方式均压的，在这样的温度下，在接触表面上实现扩散接合。