ES291493A1 - Procedure for the production of objects of thermoplastic materials (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the production of objects of thermoplastic materials (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES291493A1
ES291493A1 ES0291493A ES291493A ES291493A1 ES 291493 A1 ES291493 A1 ES 291493A1 ES 0291493 A ES0291493 A ES 0291493A ES 291493 A ES291493 A ES 291493A ES 291493 A1 ES291493 A1 ES 291493A1
Authority
ES
Spain
Prior art keywords
translation
objects
materials
production
machine
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
ES0291493A
Other languages
Spanish (es)
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.)
oHG Negri Passi & C Societr Pe
Original Assignee
oHG Negri Passi & C Societr Pe
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 oHG Negri Passi & C Societr Pe filed Critical oHG Negri Passi & C Societr Pe
Publication of ES291493A1 publication Critical patent/ES291493A1/en
Expired legal-status Critical Current

Links

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  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Process for the production of objects of thermoplastic materials, of various colors or of different fluidity by means of injection molding, characterized in that it consists essentially of pre-injecting, by means of low-pressure auxiliary cylinders, the materials of various colors or fluidities, in pre-dosed quantities and in succession, in the chamber of the main cylinder during the return phase of the injection piston, that is when the pressure in said chamber is remarkably reduced with respect to the injection, and then proceeding to the normal injection, of the set of the different plastic materials in the mold of the object by the main piston only, while preventing backflow of said materials in the auxiliary cylinders. (Machine-translation by Google Translate, not legally binding)
ES0291493A 1962-10-13 1963-09-02 Procedure for the production of objects of thermoplastic materials (Machine-translation by Google Translate, not legally binding) Expired ES291493A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2013462 1962-10-13

Publications (1)

Publication Number Publication Date
ES291493A1 true ES291493A1 (en) 1964-03-01

Family

ID=38570484

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0291493A Expired ES291493A1 (en) 1962-10-13 1963-09-02 Procedure for the production of objects of thermoplastic materials (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES291493A1 (en)

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