Unlock instant, AI-driven research and patent intelligence for your innovation.

Molding technology for combining PA46 with metal insert

A technology of metal inserts and molding process, applied in the direction of coating, etc., can solve the problems of metal inserts and plastic parts easily falling off under force

Active Publication Date: 2015-07-15
KINGFA SCI & TECH CO LTD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a molding process combining PA46 and metal inserts, which can solve the problem that the metal inserts and plastic parts are easy to fall off after being formed.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Molding technology for combining PA46 with metal insert
  • Molding technology for combining PA46 with metal insert
  • Molding technology for combining PA46 with metal insert

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be further described below through specific embodiments. The following examples are preferred implementation forms of the present invention, but the implementation manners of the present invention are not limited by the following examples.

[0021] The plastic-steel joint surface of the present invention is a semicircular joint, the radius R of the metal insert is 30mm, and the height is 75mm, and the outer radius R of the plastic part is 60mm, and the height is 40mm. Before injection molding, the surface of the P20 metal insert with a surface roughness of Ra0.05 is cleaned, and the metal insert is placed in a high-temperature oven for heating. The temperature of the metal insert is controlled, and the surface temperature of the metal insert is shown in Table 1; when the preheated metal insert is put into the mold for injection molding, the surface of the metal insert is in surface contact with the temperature sensor installed in the mold. Thr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
radiusaaaaaaaaaa
heightaaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

The invention discloses a molding technology for combining PA46 with a metal insert. The molding technology comprises the following steps of: carrying out pre-heating treatment on the metal insert before injection molding until the surface temperature of the metal insert reaches 295-330 DEG C; carrying out injection molding on the pre-heated metal insert in a die, wherein the temperature of the PA46 material is 295-330 DEG C; and performing the procedures of pressurizing, cooling and demolding on the metal insert. The technology disclosed by the invention solves the problem that after a plastic steel connector is molded, the metal insert and a plastic part are stressed to fall off easily due to excessive internal stress generated around the metal insert in a molding process.

Description

technical field [0001] The invention belongs to the technical field of functional polymer materials, and in particular relates to a molding process combining PA46 and metal inserts. Background technique [0002] PA46 (polybutylene adipamide) is a new type of polyamide resin with high melting point and high crystallinity. It is an aliphatic polyamide formed by polycondensation of butylenediamine and adipic acid. It has excellent high temperature resistance, Chemical resistance, low creep, excellent fatigue resistance and low wear, widely used in the manufacture of mechanical structural parts and maintainable parts. [0003] Over the years, the plastic-steel combination process has been in use, including adding metal inserts in the injection molding process, and plastics for metal insert heating and pressing. Due to the variety of combinations of metal inserts and plastic parts, the current plastic-steel joints often have the problem that plastic and steel parts are easy to f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/14B29C45/76B29K77/00
Inventor 蒋贤志蔡彤旻宁凯军王大中叶南飚陈大华关安南
Owner KINGFA SCI & TECH CO LTD