Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of nylon material assembly for laser welding and its preparation method and application

A technology of laser welding and assembly, which is applied in the field of nylon material assembly for laser welding and its preparation, can solve the problems of weak light energy, failure to actually verify the rupture strength of nylon material laser welding, and inability to reach the energy strength of nylon in a molten light absorbing layer. , to achieve the effect of consistent color, improved light transmittance and consistent formula

Active Publication Date: 2021-11-02
SHANGHAI KINGFA SCI & TECH +2
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Our research has found that nigrosine has an adverse effect on the transmission of light, and the light energy transmitted through the nigrosine material is weak, which cannot reach the energy intensity of nylon in the melting light-absorbing layer
In the above-mentioned patent, it is true that there is no actual verification of whether the nylon material can be laser welded and the fracture strength at the welding interface is tested.

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
  • A kind of nylon material assembly for laser welding and its preparation method and application
  • A kind of nylon material assembly for laser welding and its preparation method and application
  • A kind of nylon material assembly for laser welding and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7 and comparative example 1～7

[0035] Its preparation method of embodiment 1~7 and comparative example 1~7 is as follows:

[0036] PA66 resin, PA6 resin, copolymerized nylon, carbon black, antioxidant and lubricant are pre-mixed in a certain proportion in a high-mixing medium, and then melted and extruded into a twin-screw extruder. , cooling, pelletizing, and drying to obtain the nylon material of the light-absorbing layer;

[0037] PA66 resin, PA6 resin, copolymerized nylon, organic toner, antioxidant and lubricant are pre-mixed in a certain proportion in a high-mixing medium, and then melted and extruded into a twin-screw extruder. After stripping, cooling, pelletizing and drying, the nylon material of the light-transmitting layer is obtained. The temperature of the twin-screw extruder is set at 220-260° C., and the screw speed is 350-450 rpm.

[0038] Embodiment 1~7 and comparative example 1~7 performance test method are as follows, and the results are as shown in table 3:

[0039] Color difference t...

Embodiment 2

[0046] Embodiment 2 added 20% copolymerized nylon on the basis of comparative example 2, which improved the light transmittance of nylon in the light-transmitting layer, and the corresponding welding strength also greatly improved, and realized the laser welding of nylon materials with PA66 as the matrix;

Embodiment 3

[0047] In Example 3, 20% copolymerized nylon was added on the basis of Comparative Example 3, which improved the light transmittance of nylon in the light-transmitting layer, and the corresponding welding strength was also greatly improved, realizing the laser welding of nylon materials based on PA6 and PA66 alloys. welding;

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
diameteraaaaaaaaaa
transmittivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a nylon material assembly for laser welding and its preparation method and application, comprising light-transmitting layer nylon and light-absorbing layer nylon; the light-transmitting layer nylon includes the following components and mass percentages: PA66 resin 0-90% , PA6 resin 0‑90%, copolymerized nylon 10‑30%, glass fiber 0‑40%, organic toner 0.2‑0.6%, antioxidant 0.2‑0.5%; light-absorbing layer nylon includes the following components and mass percentages : PA66 resin 0‑90%, PA6 resin 0‑90%, copolymer nylon 10‑30%, glass fiber 0‑40%, carbon black 0.25‑0.75%, antioxidant 0.2‑0.5%. The present invention introduces copolymerized nylon into the glass fiber reinforced nylon system, which can reduce the crystallinity of the nylon material and increase its light transmittance; while the organic toner can meet the requirements of black materials, it has little influence on the nylon light transmittance, and the present invention can be used in automobiles Medium-structure complex connectors or cavity structures.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a nylon material assembly for laser welding and its preparation method and application. Background technique [0002] The connection of plastic parts is a key link in the wide application of plastics. In practical applications, plastic parts can be joined by mechanical fastening, chemical bonding or welding. Fastening connections generally realize the connection of plastic parts through buckle or thread design. This method is fast and suitable for all plastics, but it is easy to generate stress concentration, increase additional costs, and it is difficult to form a completely sealed connection; chemical bonding through bonding The bonding agent realizes the connection of plastic parts, which can obtain excellent performance and high-quality joints, but it has high requirements on the surface chemistry of the material, and the operation is difficult and the ...

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): C08L77/02C08L77/06C08L77/00C08K7/14C08K3/04
Inventor 叶士兵张超丁正亚罗忠富夏建盟陈春华肖军华李志路吴谦安朋
Owner SHANGHAI KINGFA SCI & TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com