GB1011248A - Improvements in or relating to the preparation of plastics articles - Google Patents

Improvements in or relating to the preparation of plastics articles

Info

Publication number
GB1011248A
GB1011248A GB3248962A GB3248962A GB1011248A GB 1011248 A GB1011248 A GB 1011248A GB 3248962 A GB3248962 A GB 3248962A GB 3248962 A GB3248962 A GB 3248962A GB 1011248 A GB1011248 A GB 1011248A
Authority
GB
United Kingdom
Prior art keywords
mould
punch
moulding
articles
blank
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
Application number
GB3248962A
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.)
Olin Corp
Original Assignee
Olin Corp
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 Olin Corp filed Critical Olin Corp
Priority claimed from US362698A external-priority patent/US3171350A/en
Publication of GB1011248A publication Critical patent/GB1011248A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B7/00—Shotgun ammunition
    • F42B7/02—Cartridges, i.e. cases with propellant charge and missile
    • F42B7/06—Cartridges, i.e. cases with propellant charge and missile with cartridge case of plastics
    • 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
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/16—Forging
    • 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
    • B29C67/0029—Cold deforming of thermoplastics material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/26—Cartridge cases
    • F42B5/30—Cartridge cases of plastics, i.e. the cartridge-case tube is of plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/26—Cartridge cases
    • F42B5/36—Cartridge cases modified for housing an integral firing-cap
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • 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
    • B29K2105/25—Solid
    • B29K2105/253—Preform
    • B29K2105/255—Blocks or tablets
    • 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
    • B29K2995/0039—Amorphous
    • 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
    • B29K2995/0077—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/777—Weapons
    • B29L2031/7772—Cartridges

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

1,011,248. Moulding hollow articles. OLIN MATHIESON CHEMICAL CORPORATION. Aug. 23, 1962 [Sept. 1, 1961; Feb. 7, 1962], No. 32489/62. Heading B5A. [Also in Division F3] Hollow articles of a crystalline olefinic polymer, such as linear high density polyethylene or propylene, are compression moulded at a temperature below the crystalline melt temperature of the material, the articles thus formed having tensile strengths up to ten times that of the undeformed polymer. A cartridge case 1 such as in Fig. 3 having a thick lower portion 8 and a thin tapered wall 9 is compression moulded from blank 7 in the die cavity 28 (Fig. 1) by the tapered portion 13 of the punch 12. Punch speeds of about 5-60 feet per minute are used to preform the moulding, the stroke being guided by the co-operation of projection 15 with the channel 23 in the supporting block 11. In the embodiment shown in Fig. 4 the mould is heated by a circulating medium system 73 and the article is removed from the die by a further downward movement of the punch 53 after the bottom 80, pivoted about 81, has been released by a suitable rotation of the locking nut 79. A blank having a metal casing may be used, the casing acting as a liner to the mould and being retained upon the finished cartridge. Collapsible dispensing tubes and containers may also be formed. An alternative set of blanks and compression moulding apparatus for forming cartridge cases can be seen in Figs. 11-14 (not shown). The mould may be lubricated by a suitable substance such as ethylene glycol.
GB3248962A 1961-09-01 1962-08-23 Improvements in or relating to the preparation of plastics articles Expired GB1011248A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13556961A 1961-09-01 1961-09-01
US17172962A 1962-02-07 1962-02-07
US362698A US3171350A (en) 1964-04-27 1964-04-27 Biaxially oriented plastic shotshell

Publications (1)

Publication Number Publication Date
GB1011248A true GB1011248A (en) 1965-11-24

Family

ID=27384730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3248962A Expired GB1011248A (en) 1961-09-01 1962-08-23 Improvements in or relating to the preparation of plastics articles

Country Status (4)

Country Link
BE (2) BE663098A (en)
DE (3) DE1728413A1 (en)
GB (1) GB1011248A (en)
NL (1) NL289420A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507941A (en) * 1967-07-12 1970-04-21 Us Navy Process to increase strength of artificial organic materials

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012012729U1 (en) * 2012-12-04 2013-10-01 Sartorius Stedim Biotech Gmbh Device for flow measurement in hose and / or plastic pipe systems and flow measurement arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507941A (en) * 1967-07-12 1970-04-21 Us Navy Process to increase strength of artificial organic materials

Also Published As

Publication number Publication date
DE1453852A1 (en) 1971-12-30
BE621986A (en)
DE1728413A1 (en) 1972-04-06
DE1479539B (en) 1971-08-26
NL289420A (en)
BE663098A (en) 1965-08-17

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