Nylon powder used for high-speed laser sintered products

A nylon powder and laser sintering technology, which is applied in the field of nylon powder materials, can solve the problems of high manufacturing cost, complicated process, and poor toughness, and achieve the effects of reducing development costs, good toughness, and strong competitiveness

Inactive Publication Date: 2002-11-13
北京北方恒利科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the molding powders used for laser sintering rapid prototyping of new product models (products) include polystyrene PS and ABS. The prototype products made of these two powder materials have low strength, poor toughness, and are easy to break, so the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Take 1 kg of nylon 12 pellets and cool them to -60°C--150°C in a freezer, then pulverize and sieve to obtain nylon powder;

[0021] (2) With the above-mentioned nylon powder in a high-speed mixer, utilize spray equipment to add surfactant: 1 gram of sodium dodecylbenzenesulfonate, light absorber: light stabilizer 2002, 0.1 gram, after high-speed stirring evenly drying in a vacuum oven to obtain the base material;

[0022] (3) Add compatibilizer: 5 grams of PP-g-MAH, viscosity reducer: 0.5 grams of white carbon black, nucleating agent: 1 gram of nano-silica, filler: 5 grams of PP powder in the above-mentioned base material. Mix evenly in a mixer and sieve to obtain nylon powder material.

Embodiment 2

[0023] Embodiment 2: (following detailed process step is with embodiment 1)

[0024] (1) Get 1 kilogram of nylon 6 pellets, freeze, pulverize, and sieve;

[0025] (2) Add surfactant: 10 grams of sodium methylene diisopropylbenzene sulfonate, light absorber: UV327, 5 grams, stir and dry;

[0026] (3) Add compatibilizer: 200 grams of PE-g-MAH, viscosity reducer: 30 grams of calcium carbonate, nucleating agent: 20 grams of nano-alumina, filler; 100 grams of PE powder, mix and sieve.

Embodiment 3

[0028] (1) Get 1 kilogram of nylon 1010 pellets, freeze, pulverize, and sieve;

[0029] (2) Add surfactant: 2 grams of sodium dialkylsulfonate, light absorber: light stabilizer 2002, 2 grams, stir and dry;

[0030] (3) Add compatibilizer: 60 grams of PP-g-MAH, viscosity reducer: 20 grams of white carbon black, nucleating agent: 3 grams of nano-silica, filler: 20 grams of PP powder, mix and sieve.

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Abstract

A nylon powdery material used for laser sintering to quickly shape the products is prepared through chemical synthesis, surface treatment and modification. Its advantage is high sintering performance. Its products feature high strength and toughness, and low cost.

Description

1. Technical field [0001] The invention belongs to the category of processing parts with laser beams, and relates to a nylon powder material used for laser sintering rapid prototyping products, which is used to quickly manufacture new product models and provide new materials for flexible production of new product development. 2. Background technology [0002] At present, the international market competition of industrial products is becoming increasingly fierce. In order to improve the competitiveness of enterprises, the development speed of new products is very important. In the research and development stage of new products, although researchers use computer-aided design methods to speed up product design, they can only use design drawings and computer simulations to evaluate product design in general, and cannot evaluate the structural rationality of product design. , process feasibility, and final effect to make a direct and accurate evaluation. The way to solve the pro...

Claims

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Application Information

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IPC IPC(8): B29C67/04C08L33/24
Inventor 程军白培康李迎春觉惊知刘斌
Owner 北京北方恒利科技发展有限公司
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