公开(公告)号：NO910557L

公开(公告)日：1991-08-14

申请号：NO910557

申请日：1991-02-12

Applicant: HOECHST AG

Inventor： PREISLER EBERHARD ,  BOCK JOACHIM ,  HOLZEM JOHANNES ,  HORST WERNER

IPC: C01B33/00 ,  B23K1/00 ,  C01G1/00 ,  C01G29/00 ,  C04B35/00 ,  C04B35/45 ,  C04B37/00 ,  H01B12/00 ,  H01B13/00 ,  H01L39/02 ,  H01L39/12 ,  H01L39/24 ,  C01F11/00 ,  C01G3/02 ,  C01G21/00

Abstract: For joining parts of ceramic high-temperature superconductive material of the composition Bi(2+a-b)(Sr(1-c)Cac)(3-a)PbbCu(2+d)Ox, a being 0 to 0.3, b being 0 to 0.5, c being 0.1 to 0.9 and d being 0 to 2, and x having a value depending on the oxidation state of the metals present, the end faces of the parts, located at a mutual distance amounting to a gap, are heated by means of a fuel gas/oxygen flame to temperatures from 750 to 875 DEG C. At the same time, a rod of the same material is heated above the distance amounting to a gap until the melt thereof drips between the end faces of the two parts into the gap, completely filling it. At least the joint region between the two parts is then heat-treated for 7 to 100 hours at temperatures between 780 and 850 DEG C.

公开(公告)号：NO910557A

公开(公告)日：1991-08-14

申请号：NO910557

申请日：1991-02-12

Applicant: HOECHST AG

Inventor： PREISLER EBERHARD ,  BOCK JOACHIM ,  HOLZEM JOHANNES ,  HORST WERNER

IPC: C01B33/00 ,  C01G1/00 ,  C01G29/00 ,  C04B35/45 ,  C04B37/00 ,  H01B12/00 ,  H01B13/00 ,  H01L39/02 ,  H01L39/24 ,  C01F11/00 ,  C01G3/02 ,  C01G21/00 ,  C04B35/00 ,  H01L39/12

CPC classification number: C04B37/005 ,  C04B35/4525 ,  C04B2237/06 ,  C04B2237/34 ,  C04B2237/78 ,  C04B2237/80 ,  H01L39/02

公开(公告)号：NO910557D0

公开(公告)日：1991-02-12

申请号：NO910557

申请日：1991-02-12

Applicant: HOECHST AG

Inventor： PREISLER EBERHARD ,  BOCK JOACHIM ,  HOLZEM JOHANNES ,  HORST WERNER

IPC: C01B33/00 ,  B23K1/00 ,  C01G1/00 ,  C01G29/00 ,  C04B35/00 ,  C04B35/45 ,  C04B37/00 ,  H01B12/00 ,  H01B13/00 ,  H01L39/02 ,  H01L39/12 ,  H01L39/24 ,  C04B

Abstract: For joining parts of ceramic high-temperature superconductive material of the composition Bi(2+a-b)(Sr(1-c)Cac)(3-a)PbbCu(2+d)Ox, a being 0 to 0.3, b being 0 to 0.5, c being 0.1 to 0.9 and d being 0 to 2, and x having a value depending on the oxidation state of the metals present, the end faces of the parts, located at a mutual distance amounting to a gap, are heated by means of a fuel gas/oxygen flame to temperatures from 750 to 875 DEG C. At the same time, a rod of the same material is heated above the distance amounting to a gap until the melt thereof drips between the end faces of the two parts into the gap, completely filling it. At least the joint region between the two parts is then heat-treated for 7 to 100 hours at temperatures between 780 and 850 DEG C.

公开(公告)号：CA2043483A1

公开(公告)日：1991-12-19

申请号：CA2043483

申请日：1991-05-29

Applicant: HOECHST AG

Inventor： PREISLER EBERHARD ,  BOCK JOACHIM ,  HOLZEM JOHANNES ,  DORN FRIEDRICH-WILHELM

IPC: C01G1/00 ,  B22D13/02 ,  B28B21/30 ,  C01G29/00 ,  C04B35/00 ,  C04B35/45 ,  C04B35/653 ,  C04B41/80 ,  H01B12/02 ,  H01L39/24 ,  B22D21/00 ,  H01L39/08 ,  H01B12/12

Abstract: To produce tubular molded parts made of high-temperature superconductor material based on oxides of bismuth, calcium, strontium and copper, a homogeneous melt of the oxide mixture with a specified stoichiometry is allowed to run at temperatures of 900 to 1100.degree.C into a casting zone rotating about its horizontal axis. The solidified molded part is removed from the casting zone and it is annealed for 4 to 150 hours at 700 to 900.degree.C in an oxygencontaining atmosphere. A plant for producing tubular molded parts comprises a rotatably arranged mold (4, 9) which is provided at least at one end face with a front plate 6 which reduces its free cross section, a runner 7 extending into the interior of the mold (4, 9) and a crucible 8 arranged above the runner 7 which is capable of feeding the runner 7 with melt (cf. Fig. 2A).

公开(公告)号：DE4004363A1

公开(公告)日：1991-08-14

申请号：DE4004363

申请日：1990-02-13

Applicant: HOECHST AG

Inventor： PREISLER EBERHARD DIPL CHEM DR ,  BOCK JOACHIM DIPL CHEM DR ,  HOLZEM JOHANNES ,  HORST WERNER

IPC: C01B33/00 ,  B23K1/00 ,  C01G1/00 ,  C01G29/00 ,  C04B35/00 ,  C04B35/45 ,  C04B37/00 ,  H01B12/00 ,  H01B13/00 ,  H01L39/02 ,  H01L39/12 ,  H01L39/24

Abstract: For joining parts of ceramic high-temperature superconductive material of the composition Bi(2+a-b)(Sr(1-c)Cac)(3-a)PbbCu(2+d)Ox, a being 0 to 0.3, b being 0 to 0.5, c being 0.1 to 0.9 and d being 0 to 2, and x having a value depending on the oxidation state of the metals present, the end faces of the parts, located at a mutual distance amounting to a gap, are heated by means of a fuel gas/oxygen flame to temperatures from 750 to 875 DEG C. At the same time, a rod of the same material is heated above the distance amounting to a gap until the melt thereof drips between the end faces of the two parts into the gap, completely filling it. At least the joint region between the two parts is then heat-treated for 7 to 100 hours at temperatures between 780 and 850 DEG C.

公开(公告)号：CA2034248A1

公开(公告)日：1991-08-14

申请号：CA2034248

申请日：1991-01-16

Applicant: HOECHST AG

Inventor： PREISLER EBERHARD ,  BOCK JOACHIM ,  HOLZEM JOHANNES ,  HORST WERNER

IPC: C01B33/00 ,  B23K1/00 ,  C01G1/00 ,  C01G29/00 ,  C04B35/00 ,  C04B35/45 ,  C04B37/00 ,  H01B12/00 ,  H01B13/00 ,  H01L39/02 ,  H01L39/12 ,  H01L39/24 ,  C04B35/50

Abstract: HOE 90/H 004 Method for joining parts of ceramic high temperature superconductor material of the disclosure For joining parts of ceramic high-temperature superconductor material of the composition Bi(2+a-b)(Sr(1-c)Cac)(3-a)PbbCu(2+d)Ox, where a is 0 to 0.3, b is 0 to 0.5, c is 0.1 to 0.9 and d is 0 to 2 and x has a value depending on the state of oxidation of the metals present, the end faces of the parts located at a gap spacing apart from one another are heated by means of a fuel gas/oxygen flame to temperatures from 750 to 875.degree.C. Simultaneously, a rod of the same material above the spacing gap is heated until the melt thereof drips off into the gap between the end faces of the two parts, completely filling the gap. At least the joint region between the two parts is then heat-treated for 7 to 100 hours at temperatures between 780 and 850.degree.C.

公开(公告)号：GB2177115B

公开(公告)日：1989-07-12

申请号：GB8614842

申请日：1986-06-18

Applicant: HOECHST AG

Inventor： PREISLER DR EBERHARD ,  HOLZEM JOHANNES

IPC: C25B1/00 ,  C25B1/21 ,  C25B9/00 ,  C25B11/02 ,  C25B11/04 ,  C25D1/00 ,  C25D9/00

公开(公告)号：ZA864537B

公开(公告)日：1987-02-25

申请号：ZA864537

申请日：1986-06-18

Applicant: HOECHST AG

Inventor： PREISLER EBERHARD ,  HOLZEM JOHANNES

IPC: C25B1/00 ,  C25B1/21 ,  C25B9/00 ,  C25B11/02 ,  C25B11/04 ,  C25D1/00 ,  C25D9/00 ,  C25B

公开(公告)号：DE3521827A1

公开(公告)日：1987-01-02

申请号：DE3521827

申请日：1985-06-19

Applicant: HOECHST AG

Inventor： PREISLER EBERHARD DIPL CHEM DR ,  HOLZEM JOHANNES

IPC: C25B1/00 ,  C25B1/21 ,  C25B9/00 ,  C25B11/02 ,  C25B11/04 ,  C25D1/00 ,  C25D9/00 ,  C25B11/16

公开(公告)号：NO179365C

公开(公告)日：1996-09-25

申请号：NO910557

申请日：1991-02-12

Applicant: HOECHST AG

Inventor： PREISLER EBERHARD ,  BOCK JOACHIM ,  HOLZEM JOHANNES ,  HORST WERNER

IPC: C01B33/00 ,  B23K1/00 ,  C01G1/00 ,  C01G29/00 ,  C04B35/00 ,  C04B35/45 ,  C04B37/00 ,  H01B12/00 ,  H01B13/00 ,  H01L39/02 ,  H01L39/12 ,  H01L39/24

Abstract: For joining parts of ceramic high-temperature superconductive material of the composition Bi(2+a-b)(Sr(1-c)Cac)(3-a)PbbCu(2+d)Ox, a being 0 to 0.3, b being 0 to 0.5, c being 0.1 to 0.9 and d being 0 to 2, and x having a value depending on the oxidation state of the metals present, the end faces of the parts, located at a mutual distance amounting to a gap, are heated by means of a fuel gas/oxygen flame to temperatures from 750 to 875 DEG C. At the same time, a rod of the same material is heated above the distance amounting to a gap until the melt thereof drips between the end faces of the two parts into the gap, completely filling it. At least the joint region between the two parts is then heat-treated for 7 to 100 hours at temperatures between 780 and 850 DEG C.