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Molding technology combining PA 66/PA 10T alloy with metal embedded pieces

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 that are easy to fall off under force, and achieve the effect of a stable combination of plastic and steel

Active Publication Date: 2015-06-03
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a forming process combining PA66 / PA10T alloy and metal insert, which can solve the problem that the metal insert and plastic parts are easy to fall off after forming

Method used

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  • Molding technology combining PA 66/PA 10T alloy with metal embedded pieces
  • Molding technology combining PA 66/PA 10T alloy with metal embedded pieces
  • Molding technology combining PA 66/PA 10T alloy with metal embedded pieces

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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 53mm, and the height is 90mm, and the outer radius R of the plastic part is 97mm, and the height is 60mm. 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...

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Abstract

The invention discloses a molding technology combining polyamide 66 PA 66 / PA 10T alloy with metal embedded pieces, which comprises the following steps: (1) before injection molding, pre-heating the metal embedded pieces to enable surface temperature of the metal embedded pieces to be 280 DEG C to 340 DEG C; (2) putting the pre-heated metal embedding pieces into molds for injection molding, wherein the temperature of PA66 / PA 10T materials is 280 DEG C to 340 DEG C; and (3) pressurizing, cooling and de-molding, thus obtaining end products. The molding technology combining PA 66 / PA 10T alloy with metal embedded pieces can be used for solving the problems that after plastic-steel combined pieces are molded, metal embedded pieces and molded pieces are easy to fall off due to overlarge internal stress generated around the metal embedded pieces during molding.

Description

technical field [0001] The invention belongs to the technical field of functional polymer materials, and in particular relates to a forming process combining PA66 / PA10T alloys and metal inserts. Background technique [0002] PA66, also known as nylon 66, polyhexamethylene adipamide, has excellent wear resistance, self-lubricating properties, and high mechanical strength. It is widely used in the automotive industry, instrument housings, and other industries that require impact resistance and high strength. The product. PA10T is a copolymer of terephthalic acid and decyl diamine, which has low water absorption, good dimensional stability and good chemical resistance. Melt blend PA66 and PA10T, extrude and granulate to obtain PA66 / PA10T alloy. Excellent properties make PA66 / PA10T alloy widely used in many fields including automobile industry, mechanical parts and electrical / electronic parts. [0003] Over the years, the plastic-steel combination process has been in use, inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/14B29C45/78B29C45/77
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