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Method for connecting thermoplastic coated parts and plastic part

A thermoplastic, component technology, applied in the field of plastic components, which can solve problems such as weakening of component stiffness, harmful joints, low strength and rigidity of adhesives, etc.

Pending Publication Date: 2021-11-02
MAGNA EXTERIORS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, since the adhesive has only low strength and rigidity, glued joints exhibit a weakening of the stiffness of the components and, as a result, at the glued joint, are mechanically detrimental to the joint

Method used

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  • Method for connecting thermoplastic coated parts and plastic part
  • Method for connecting thermoplastic coated parts and plastic part
  • Method for connecting thermoplastic coated parts and plastic part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1 A motor vehicle rear door is shown, which is composed of two large-area parts, an outer shell 1 and an inner shell 2 . Both housings 1, 2 have cutouts 11, which are provided for insertion into the rear window. Lugs for the hinge 12 are provided on the high bar of the outer shell and on the inner shell. In the figure, the skin of the housing 1 can be seen. The skin has a coating 3 . In this example, the coating covers the lower region of the housing 1 below the cutout 11 . In this simplified illustration, the bar constituting the cutout 11 for the rear window is not shown. These side and high bars can also be coated. Depending on the requirements of the motor vehicle manufacturer, the coating areas are arranged in different ways. In the case of the example of a motor vehicle rear door, the second plastic part, ie the inner shell 2 , is generally not coated. The view of said inner shell 2 shows its inner surface, which is no longer visible after the parts ...

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PUM

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Abstract

The invention relates to a method for connecting two thermoplastic parts, wherein opposite surfaces of the thermoplastic parts are at least partially melted by means of introduced energy. According to the method of the invention, at least one of the two thermoplastic parts has an expanded region coating. The connection point and / or the connection surface is at least partially behind the coated surface and is not exposed by the coating after the connection process. Reduced energy input relative to uncoated region produced by a heated region of the thermoplastic component with coating located after connection point is heated, the heating region is arranged to be spaced apart from the edge of the component to be joined by an edge pitch, the heat input in the component with the coating occurring within the range of the input width. For a component with a coating, the penetration depth of the heat input only reaches half or two thirds of the thickness of the component.

Description

[0001] This application is a divisional application of the invention patent application with the application number 201410573508.0, the application date is October 23, 2014, and the invention title is "Method for connecting thermoplastically coated parts and plastic parts". technical field [0002] The invention relates to a method for joining two thermoplastic parts, wherein opposing surfaces of the thermoplastic parts are at least partially melted by introduced energy. [0003] Furthermore, the invention relates to plastic parts connected by means of said method. Background technique [0004] Welding of polymeric material components has long been known. This makes it possible to build complex assembly structures from individual parts. For example, welding is used to make components for motor vehicles. [0005] In this case, parts with large dimensions, such as bumper cladding made of polymer material or made of corresponding sheet parts forming the skin and structural el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/14
CPCB32B37/0076B32B38/0036B32B27/32B29C65/7847B29C66/1122B29C66/24244B29C66/3472B29C66/3474B29C66/41B29C66/54B29C66/545B29C66/8322B29C66/91423B29L2031/3055B29C66/71B29C65/1432B29C66/1142B29C66/723B29C65/1464B29C66/73921Y10T428/24802Y10T428/24826B32B7/05B32B27/08B32B37/04B32B2250/02B32B2250/24B32B2605/08B29K2023/12B32B37/06B32B37/30
Inventor J.戈策尔曼H.萨尔兹曼
Owner MAGNA EXTERIORS GMBH