JPS5780011A - Manufacture for hollow transparent article - Google Patents

Manufacture for hollow transparent article

Info

Publication number
JPS5780011A
JPS5780011A JP15582580A JP15582580A JPS5780011A JP S5780011 A JPS5780011 A JP S5780011A JP 15582580 A JP15582580 A JP 15582580A JP 15582580 A JP15582580 A JP 15582580A JP S5780011 A JPS5780011 A JP S5780011A
Authority
JP
Japan
Prior art keywords
original mold
model
cavity
hardened
product
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.)
Pending
Application number
JP15582580A
Other languages
Japanese (ja)
Inventor
Yoshito Yoshida
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.)
YOSHIDA KIYASUTO KOGYO KK
Original Assignee
YOSHIDA KIYASUTO KOGYO KK
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 YOSHIDA KIYASUTO KOGYO KK filed Critical YOSHIDA KIYASUTO KOGYO KK
Priority to JP15582580A priority Critical patent/JPS5780011A/en
Publication of JPS5780011A publication Critical patent/JPS5780011A/en
Pending legal-status Critical Current

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
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • 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
    • B29K2091/00—Use of waxes as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain product having luster on the internal surface of is cavity by a process in which an original mold for forming cavity is composed of a deformation free material and the residual material of the original mold is perfectly removed by a fresh material for removing the residual material. CONSTITUTION:For example an original mold is made by using a curable impression material 2 such as polyurethane, and the original mold 1 is removed from the material 2 after being hardened, thereby obtaning the same cavity 3 as the original mold 1. Then the mixture of ethylene vinyl acetate-copolymer and liquid paraffin (melting point can be desirably set by regulating the mixing ratio of said materials) is poured into the cavity 3 and hardened. Thus, a wax model 4 same as the original mold 1 is obtained by removing the hardened impression material 2. Then, runners 5 are provided into the model 4, and the model 4 is placed in the center of a frame body 6 consisting the product. After the transparent material is poured and solidified, the bottom plate 7 is removed, and the frame body 6 is cooled from outer surface. The wax of the model 4 melted by solidification heat, is taken away from the runner 5, then the product is obtained.
JP15582580A 1980-11-07 1980-11-07 Manufacture for hollow transparent article Pending JPS5780011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15582580A JPS5780011A (en) 1980-11-07 1980-11-07 Manufacture for hollow transparent article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15582580A JPS5780011A (en) 1980-11-07 1980-11-07 Manufacture for hollow transparent article

Publications (1)

Publication Number Publication Date
JPS5780011A true JPS5780011A (en) 1982-05-19

Family

ID=15614306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15582580A Pending JPS5780011A (en) 1980-11-07 1980-11-07 Manufacture for hollow transparent article

Country Status (1)

Country Link
JP (1) JPS5780011A (en)

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