GB2007586A - Process for the Manufacture of Shaped Articles from Materials Capable of Sintering - Google Patents

Process for the Manufacture of Shaped Articles from Materials Capable of Sintering

Info

Publication number
GB2007586A
GB2007586A GB7841892A GB7841892A GB2007586A GB 2007586 A GB2007586 A GB 2007586A GB 7841892 A GB7841892 A GB 7841892A GB 7841892 A GB7841892 A GB 7841892A GB 2007586 A GB2007586 A GB 2007586A
Authority
GB
United Kingdom
Prior art keywords
sintering
manufacture
shaped articles
produced
materials capable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB7841892A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of GB2007586A publication Critical patent/GB2007586A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/52—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0063—Density
    • B29K2995/0064—Non-uniform density

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Materials For Medical Uses (AREA)
  • Powder Metallurgy (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Filtering Materials (AREA)

Abstract

Shaped articles such as ventilation elements, atomizers, filter plates, artificial joints and bones of non-uniform structure are produced by compressing, in a locally differing manner, a pulverulent material capable of sintering, and subjecting it subsequently to a heat treatment. This provides, in a single operation, a shaped article having different zones of density and structure. A mould (3), Fig. 3, for the manufacture of a filter disc includes a ring (4), a spring-urged plate (5) and a compression plate (6) whereby the peripheral zone of the produced article is impermeable and its central zone permeable. <IMAGE>
GB7841892A 1977-10-26 1978-10-25 Process for the Manufacture of Shaped Articles from Materials Capable of Sintering Withdrawn GB2007586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772747925 DE2747925A1 (en) 1977-10-26 1977-10-26 PROCESS FOR PRODUCING BODIES FROM SINTERABLE MATERIAL

Publications (1)

Publication Number Publication Date
GB2007586A true GB2007586A (en) 1979-05-23

Family

ID=6022268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7841892A Withdrawn GB2007586A (en) 1977-10-26 1978-10-25 Process for the Manufacture of Shaped Articles from Materials Capable of Sintering

Country Status (4)

Country Link
JP (1) JPS5470357A (en)
DE (1) DE2747925A1 (en)
FR (1) FR2407066A1 (en)
GB (1) GB2007586A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229133A (en) * 1989-03-16 1990-09-19 Solvay Moulding method and mould

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118080857B (en) * 2024-04-29 2024-07-02 莱州云峰粉末冶金有限公司 Powder metallurgy gear sintering device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229133A (en) * 1989-03-16 1990-09-19 Solvay Moulding method and mould
GB2229133B (en) * 1989-03-16 1992-08-19 Solvay Moulding method and mould

Also Published As

Publication number Publication date
DE2747925A1 (en) 1979-05-03
FR2407066A1 (en) 1979-05-25
JPS5470357A (en) 1979-06-06

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)