CA1037665A - Method and apparatus for making injection moulded plastic bodies - Google Patents
Method and apparatus for making injection moulded plastic bodiesInfo
- Publication number
- CA1037665A CA1037665A CA209,507A CA209507A CA1037665A CA 1037665 A CA1037665 A CA 1037665A CA 209507 A CA209507 A CA 209507A CA 1037665 A CA1037665 A CA 1037665A
- Authority
- CA
- Canada
- Prior art keywords
- core material
- agent
- macroblowing
- resin
- mold cavity
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000002347 injection Methods 0.000 title claims description 29
- 239000007924 injection Substances 0.000 title claims description 29
- 239000002991 molded plastic Substances 0.000 title 1
- 239000011162 core material Substances 0.000 claims abstract description 100
- 239000000463 material Substances 0.000 claims abstract description 67
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 36
- 239000000057 synthetic resin Substances 0.000 claims abstract description 36
- 239000004604 Blowing Agent Substances 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 34
- 239000011148 porous material Substances 0.000 claims description 12
- 230000009969 flowable effect Effects 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
- 239000004416 thermosoftening plastic Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 238000013022 venting Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000018984 mastication Effects 0.000 description 1
- 238000010077 mastication Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
-
- 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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0492—Devices for feeding the different materials
-
- 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
- B29C44/3442—Mixing, kneading or conveying the foamable material
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1347973A CH570258A5 (en) | 1973-09-19 | 1973-09-19 | Foam core articles with outer skin - are injection moulded with large bubbles in core produced by gas |
| CH233474A CH575284A5 (en) | 1974-02-20 | 1974-02-20 | Foamed plastics injection moulded articles - with skin and core latter of which is formed by inhibiting foaming before injection nozzle |
| CH581274A CH576856A5 (en) | 1974-04-29 | 1974-04-29 | Foamed plastics injection moulded articles - with skin and core latter of which is formed by inhibiting foaming before injection nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1037665A true CA1037665A (en) | 1978-09-05 |
Family
ID=27173631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA209,507A Expired CA1037665A (en) | 1973-09-19 | 1974-09-18 | Method and apparatus for making injection moulded plastic bodies |
Country Status (6)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5798799A (en) * | 1980-12-10 | 1982-06-19 | Mitsubishi Heavy Ind Ltd | Chemical cleaning method for combined boiler |
| US4457511A (en) * | 1982-03-15 | 1984-07-03 | William Witkowski | Plastic bowling pin and method of making the same |
| JPS5960103A (ja) * | 1982-09-29 | 1984-04-06 | バブコツク日立株式会社 | ボイラ装置 |
| JP2010036563A (ja) * | 2008-08-08 | 2010-02-18 | Kasai Kogyo Co Ltd | 樹脂成形品並びにその成形方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH566207A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-12-07 | 1975-09-15 | Siemag Siegener Masch Bau |
-
1974
- 1974-09-18 JP JP49108297A patent/JPS5094078A/ja active Pending
- 1974-09-18 FR FR7431515A patent/FR2243799B1/fr not_active Expired
- 1974-09-18 IT IT2741374A patent/IT1021486B/it active
- 1974-09-18 CA CA209,507A patent/CA1037665A/en not_active Expired
- 1974-09-19 GB GB4082274A patent/GB1459882A/en not_active Expired
- 1974-09-19 BR BR779974A patent/BR7407799A/pt unknown
-
1978
- 1978-07-06 JP JP8248078A patent/JPS5415969A/ja active Pending
- 1978-07-06 JP JP8247978A patent/JPS5415968A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT1021486B (it) | 1978-01-30 |
| JPS5094078A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-07-26 |
| FR2243799B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-12-29 |
| BR7407799A (pt) | 1975-10-14 |
| JPS5415968A (en) | 1979-02-06 |
| GB1459882A (en) | 1976-12-31 |
| FR2243799A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-04-11 |
| JPS5415969A (en) | 1979-02-06 |
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