IT974020B - IMPROVEMENT IN THE MOLDS FOR PARTS IN EXPANDED PLASTIC MATERIAL AND RELATED MANUFACTURING PROCESS - Google Patents

IMPROVEMENT IN THE MOLDS FOR PARTS IN EXPANDED PLASTIC MATERIAL AND RELATED MANUFACTURING PROCESS

Info

Publication number
IT974020B
IT974020B IT5464572A IT5464572A IT974020B IT 974020 B IT974020 B IT 974020B IT 5464572 A IT5464572 A IT 5464572A IT 5464572 A IT5464572 A IT 5464572A IT 974020 B IT974020 B IT 974020B
Authority
IT
Italy
Prior art keywords
molds
improvement
parts
manufacturing process
plastic material
Prior art date
Application number
IT5464572A
Other languages
Italian (it)
Original Assignee
Ladney M
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 Ladney M filed Critical Ladney M
Application granted granted Critical
Publication of IT974020B publication Critical patent/IT974020B/en

Links

Classifications

    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
    • B29C33/3878—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts used as masters for making successive impressions
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/428—Mould constructions; Mould supporting equipment
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
    • 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
    • B29K2823/00—Use of polyalkenes or derivatives thereof as mould material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
IT5464572A 1971-12-29 1972-12-12 IMPROVEMENT IN THE MOLDS FOR PARTS IN EXPANDED PLASTIC MATERIAL AND RELATED MANUFACTURING PROCESS IT974020B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21324471A 1971-12-29 1971-12-29

Publications (1)

Publication Number Publication Date
IT974020B true IT974020B (en) 1974-06-20

Family

ID=22794308

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5464572A IT974020B (en) 1971-12-29 1972-12-12 IMPROVEMENT IN THE MOLDS FOR PARTS IN EXPANDED PLASTIC MATERIAL AND RELATED MANUFACTURING PROCESS

Country Status (6)

Country Link
JP (3) JPS4873472A (en)
CA (1) CA994067A (en)
DE (1) DE2263584C3 (en)
FR (1) FR2169887B1 (en)
GB (1) GB1414465A (en)
IT (1) IT974020B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8411550D0 (en) * 1984-05-04 1984-06-13 Stylo Matchmakers Int Injection moulding apparatus
US4956141A (en) * 1989-04-07 1990-09-11 Libbey-Owens-Ford Co. Molding process utilizing a mold release membrane
EP1018417A1 (en) * 1999-01-07 2000-07-12 Shell Internationale Researchmaatschappij B.V. Coated mould for making polyurethane foams
PL2923813T3 (en) * 2009-06-03 2022-11-21 Otto Wiesmayer Mould insert for a mould and method for producing a mould
CN102240896A (en) * 2010-05-12 2011-11-16 南通超达机械科技有限公司 Processing technology of parting face of foaming mould for automobile interiors
US20140202616A1 (en) * 2013-01-18 2014-07-24 Menq-Fong Shieh Manufacturing Method of PU Molded Product
CN103934948A (en) * 2013-01-23 2014-07-23 谢孟峰 Manufacturing method of PU molded product
CN114852239B (en) * 2022-04-28 2024-03-29 岳阳市爱达兴智能科技有限公司 Folding mechanism with improved structure for vehicle

Also Published As

Publication number Publication date
DE2263584A1 (en) 1973-09-06
JPS56133142A (en) 1981-10-19
CA994067A (en) 1976-08-03
DE2263584C3 (en) 1979-08-16
FR2169887A1 (en) 1973-09-14
FR2169887B1 (en) 1976-10-29
JPS5441960A (en) 1979-04-03
GB1414465A (en) 1975-11-19
JPS4873472A (en) 1973-10-03
DE2263584B2 (en) 1978-12-14

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