公开(公告)号：CA2504059A1

公开(公告)日：2005-10-15

申请号：CA2504059

申请日：2005-04-11

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BEALS JAMES T ,  SNYDER JACOB A ,  MANDICH DAWN D ,  VERNER CARL R ,  KENNARD LEA D ,  PERSKY JOSHUA E ,  MURRAY STEPHEN D

IPC: B22C9/04 ,  B22C9/10 ,  B22C9/12 ,  B22C13/08

Abstract: An at least two step heating process is used to strengthen the shell of an investment casting mold including a refractory metal core. The first stage (46) may occur under otherwise oxidizing conditions at a low enough temperature to avoid substantial core oxidation. The second stage (56) may occur under essentially non-oxidizing conditions at a higher temperature.

公开(公告)号：SG116594A1

公开(公告)日：2005-11-28

申请号：SG200502024

申请日：2005-04-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SNYDER JACOB A ,  BEALS JAMES T ,  PERSKY JOSHUA E ,  VERNER CARL R ,  KENNARD LEA D ,  MANDICH DAWN D ,  MURRAY STEPHEN D

IPC: B22C9/04 ,  B22C9/10 ,  B22C9/12 ,  B22C13/08

Abstract: An at least two step heating process is used to strengthen the shell of an investment casting mold including a refractory metal core. The first stage (46) may occur under otherwise oxidizing conditions at a low enough temperature to avoid substantial core oxidation. The second stage (56) may occur under essentially non-oxidizing conditions at a higher temperature.

公开(公告)号：DE602005007420D1

公开(公告)日：2008-07-24

申请号：DE602005007420

申请日：2005-04-15

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SNYDER JACOB A ,  BEALS JAMES T ,  KENNARD LEA D ,  PERSKY JOSHUA E ,  VERNER CARL R ,  MANDICH DAWN D ,  MURRAY STEPHEN D

IPC: B22C9/04 ,  B22C9/10 ,  B22C9/12 ,  B22C13/08

Abstract: An at least two step heating process is used to strengthen the shell of an investment casting mold including a refractory metal core. The first stage (46) may occur under otherwise oxidizing conditions at a low enough temperature to avoid substantial core oxidation. The second stage (56) may occur under essentially non-oxidizing conditions at a higher temperature.

公开(公告)号：AT397983T

公开(公告)日：2008-07-15

申请号：AT05252383

申请日：2005-04-15

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SNYDER JACOB A ,  BEALS JAMES T ,  KENNARD LEA D ,  PERSKY JOSHUA E ,  VERNER CARL R ,  MANDICH DAWN D ,  MURRAY STEPHEN D

IPC: B22C9/04 ,  B22C9/10 ,  B22C9/12 ,  B22C13/08

Abstract: An at least two step heating process is used to strengthen the shell of an investment casting mold including a refractory metal core. The first stage (46) may occur under otherwise oxidizing conditions at a low enough temperature to avoid substantial core oxidation. The second stage (56) may occur under essentially non-oxidizing conditions at a higher temperature.