公开(公告)号：US3773506A

公开(公告)日：1973-11-20

申请号：US3773506D

申请日：1972-03-23

Applicant: ASEA AB

Inventor： LARKER H ,  ISAKSSON S

IPC: B22F5/04 ,  B23P15/02 ,  F01D5/18 ,  F01D5/28 ,  B22F7/00 ,  B21K3/04

CPC classification number: B22F5/04 ,  B23P15/02 ,  F01D5/187 ,  F01D5/28 ,  Y10T29/49341

Abstract: In manufacturing blades for gas turbines with a plurality of inner cooling channels by isostatic compression, a sintering capsule of deformable material is provided with thin-walled tubes arranged substantially parallel to the capsule wall parts corresponding to the high and low pressure surfaces of the blade. A powdered material is poured into the capsule, which is then evacuated, sealed and heated to at least 800*C. Thereafter the heated capsule is subjected to an external gas pressure of at least 500 bars. Simultaneously with the compression, the tubes are subjected to such a high internal gas pressure that the linear decrease in the tube cross-section is at most 50 percent.

Abstract translation: 在通过等压压缩制造具有多个内部冷却通道的燃气涡轮机的叶片中，可变形材料的烧结胶囊设置有基本平行于与叶片的高低压表面对应的胶囊壁部分平行布置的薄壁管。 将粉末材料倒入胶囊中，然后将其抽真空，密封并加热至至少800℃。然后将加热的胶囊经受至少500巴的外部气体压力。 与压缩同时，管受到如此高的内部气体压力，使得管横截面的线性减小至多为50％。

公开(公告)号：US3728111A

公开(公告)日：1973-04-17

申请号：US3728111D

申请日：1971-09-21

Applicant: ASEA AB

Inventor： STROMBLAD I ,  ISAKSSON S

IPC: B22F3/15 ,  B22F1/00

CPC classification number: B22F3/15

Abstract: FOR MANUFACTURING BILLETS OUT OF POWDER FOR FURTHER MACHINING BY ROLLING, FORGING OR MCAHINING, POWER IS POURED INTO A CONTAINER HAVING AN EVAUCATING OPENING AND IS THEN ISOSTATICALLY COMPRESSED BY SUBJECTING THE CONTAINER WITH THE ENCLOSED POWER TO A HIGH EXTREME PRESSURE. THE BILLET IS PLACED IN A HEATED FURNACE AND HEATED WHILE IT IS SIMULTANEOUSLY EVACUATED FOR DEGASSING. AFTER EVACUATION IS COMPLETED, THE BILLET IS PREHEATED IN ANOTHER FURNACE TO A TEMPERATURE SUITABLE FOR PRESSURE SINTERING AND THEN IN ANOTHER FURNACE IS SUBJECTED SIMULTANEOUSLY TO HIGH HEAT AND HIGH PRESSURE.

D R A W I N G

公开(公告)号：US3772009A

公开(公告)日：1973-11-13

申请号：US3772009D

申请日：1972-10-18

Applicant: ASEA AB

Inventor： ISAKSSON S

IPC: B22F3/14 ,  B22F3/15 ,  B30B11/00 ,  C22C33/02 ,  F27B17/00 ,  B22F3/16

CPC classification number: B30B11/002 ,  B22F3/15 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  B22F3/16 ,  C22C33/02 ,  B22F3/1208 ,  B22F2201/20

Abstract: In a procedure in which a body formed of an iron-based alloy is manufactured from powder by isostatic compression, the powder is placed in a flexible container and subjected to isostatic pressure and heat. The isostatic hot pressing is carried out at two temperatures, at one of which the iron-based alloy is at least 25 percent in Alpha -phase and at the other of which the iron-based alloy is in gamma -phase. If the treatment at the temperature for gamma -phase is carried out first, the body is cooled below the temperature level at which it is at least 25 percent in Alpha -phase to prevent retention of the gamma phase and then raised to the temperature at which it is at least 25 percent in Alpha -phase.

Abstract translation: 在由等离子体压缩的粉末制造由铁基合金形成的本体的过程中，将粉末放置在柔性容器中并进行等静压和加热。 等温热压在两个温度下进行，其中一个铁基合金在α-相中至少为25％，另一个铁基合金处于γ相。 如果首先进行γ相温度的处理，则将体冷却至低于α相的至少25％的温度水平，以防止γ相的滞留，然后升高至 在alpha相中至少为25％。

公开(公告)号：US3790340A

公开(公告)日：1974-02-05

申请号：US3790340D

申请日：1973-06-05

Applicant: ASEA AB

Inventor： ISAKSSON S ,  LARKER H ,  LINDBERG M

IPC: F27B17/00 ,  B22F3/15 ,  F23M5/00

CPC classification number: B30B11/002 ,  B22F3/15

Abstract: In a cylindrical elongated furnace for treating material at high temperature in a gaseous atmosphere under high pressure, the furnace chamber is insulated from the walls of the pressure chamber by at least three tubular parts arranged one inside the other with insulating parts. At least one ring is provided attached to one of the tubular parts and having a downwardly and inwardly sloping similar part secured to the inside of this part and directed towards, but terminating short of, the opposed part.

Abstract translation: 在用于在高压气氛中高温处理材料的圆柱形细长炉中，炉室通过至少三个以绝缘部件彼此排列的管状部件与压力室的壁绝缘。 至少一个环被提供附接到一个管状部件并且具有固定到该部件的内部并且朝向但相对于相对的部分而不是相反的部分的向下且向内倾斜的类似部件。

公开(公告)号：US3790339A

公开(公告)日：1974-02-05

申请号：US3790339D

申请日：1973-06-05

Applicant: ASEA AB

Inventor： LARKER H ,  ISAKSSON S ,  LINDBERG M ,  GRANBERG G

IPC: B22F3/14 ,  B22F3/15 ,  C21D1/74 ,  F27B17/00 ,  F27D11/02 ,  H05B3/02 ,  F27D1/00

CPC classification number: B30B11/002 ,  B22F3/15 ,  C21D1/74 ,  F27D11/02 ,  H05B3/026

Abstract: A cylindrical elongated furnace for treating material at high temperature in a gaseous atmosphere under high pressure is formed of a high pressure cylinder with end closures projecting into it and a furnace chamber arranged in the high pressure cylinder. The furnace chamber is insulated from the walls of the pressure chamber by a cylindrical casing having gas-impermeable tubes arranged one inside the other with an insulation between them. At least one layer of insulating material in the casing engages only the outer or inner surface of one tube and is spaced from the adjoining tube, the space between being filled with gas. The insulating material may be held against the outside of one of the tubes by rings or a spiral strip running helically.

Abstract translation: 用于在高压气体气氛中高温处理材料的圆柱形细长炉由高压缸形成，其中端盖突出于其中，炉室设置在高压缸中。 炉室通过圆柱形壳体与压力室的壁绝缘，所述圆筒形壳体具有不可渗透的管，其彼此间设置有绝缘体。 壳体中的至少一层绝缘材料仅与一个管的外表面或内表面接合，并且与相邻的管间隔开，其间充满气体。 绝缘材料可以通过环或螺旋带螺旋地保持抵靠在一个管的外部。