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High-strength material for automobile parts and preparation method thereof

An auto parts, high-strength technology, applied in the field of pipes, can solve the problems of low elongation at break, low tensile strength, low bending strength, etc., and achieve the effect of good mechanical properties

Inactive Publication Date: 2017-04-19
WUXI YONGXING METAL HOSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] This application aims at the technical problems of low tensile strength, low impact strength, low elongation at break and low bending strength of existing high-strength auto parts materials, and provides a high-strength auto parts material and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 100 parts of PP, 15 parts of POE, 20 parts of styrene, 10 parts of maleic anhydride, 5 parts of butadiene, 12 parts of DOA, 2 parts of silane coupling agent, 1 part of isocyanate, 10 parts of titanium dioxide, poly 14 parts of ammonium phosphate, 6 parts of melamine, 25 parts of stainless steel metal powder, 13 parts of pentaerythritol, and 15 parts of antioxidant 215.

[0023] Put PP, POE, stainless steel metal powder and pentaerythritol into a reaction kettle equipped with a stirrer and a thermometer, raise the temperature to 80°C, stir for 40min, and the stirring speed is 600 rpm.

[0024] Add the remaining raw materials, put them into the kneader, and knead at 100°C for 30 minutes. The temperature of the twin-screw extrusion barrel is 140°C, 145°C, 150°C, 155°C, 160°C, and the head temperature is 175°C.

[0025] Oxygen index 35%, Shore hardness 65A, notched impact strength 50kJ / m 3 ; Compression set 45%, thermal deformation temperature 120 ℃, tensile strength...

Embodiment 2

[0027] Weigh 100 parts of PP, 35 parts of POE, 40 parts of styrene, 30 parts of maleic anhydride, 25 parts of butadiene, 18 parts of DOA, 6 parts of silane coupling agent, 5 parts of isocyanate, 50 parts of titanium dioxide, poly 18 parts of ammonium phosphate, 10 parts of melamine, 65 parts of stainless steel metal powder, 17 parts of pentaerythritol, and 35 parts of antioxidant 215.

[0028] Put PP, POE, stainless steel metal powder and pentaerythritol into a reaction kettle equipped with a stirrer and a thermometer, raise the temperature to 100°C, stir for 60 minutes, and the stirring speed is 800 rpm.

[0029] Add the remaining raw materials, put them into the kneader, and knead at 120°C for 50 minutes. The temperature of the twin-screw extrusion barrel is 150°C, 155°C, 160°C, 165°C, 170°C, and the head temperature is 185°C.

[0030] Oxygen index 36%, Shore hardness 70A, notched impact strength 55kJ / m 3 ; Compression set 40%, thermal deformation temperature 130 ℃, tensile...

Embodiment 3

[0032] Weigh 100 parts of PP, 20 parts of POE, 25 parts of styrene, 15 parts of maleic anhydride, 10 parts of butadiene, 13 parts of DOA, 3 parts of silane coupling agent, 2 parts of isocyanate, 20 parts of titanium dioxide, poly 15 parts of ammonium phosphate, 7 parts of melamine, 35 parts of stainless steel metal powder, 14 parts of pentaerythritol, and 20 parts of antioxidant 215.

[0033] Put PP, POE, stainless steel metal powder and pentaerythritol into a reaction kettle equipped with a stirrer and a thermometer, raise the temperature to 80°C, stir for 40min, and the stirring speed is 600 rpm.

[0034]Add the remaining raw materials, put them into the kneader, and knead at 100°C for 30 minutes. The temperature of the twin-screw extrusion barrel is 140°C, 145°C, 150°C, 155°C, 160°C, and the head temperature is 175°C.

[0035] Oxygen index 37%, Shore hardness 75A, notched impact strength 60kJ / m 3 ; Compression set 35%, thermal deformation temperature 140 ℃, tensile strengt...

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Abstract

The invention discloses a high-strength material for automobile parts and a preparation method thereof. The preparation method comprises the step of weighing PP, POE, styrene, maleic anhydride, butadiene, DOA, a silane coupling agent, isocyanate, titanium dioxide, ammonium polyphosphate, trimeric cyanamide, stainless steel metal powder, pentaerythrite and an antioxidant 215. According to the material, oxygen index is 35% to 39%, shore hardness is 65 A to 85 A, notch impact strength is 50 kJ / m<3> to 70 kJ / m<3>, compression set is 25% to 45%, thermal deformation temperature is 120 DEG C to 160 DEG C, tensile strength is 30 MPa to 50 MPa, cold resistance is minus 50 DEG C, the material does not have cracks after being folded, solution flow index is 1 g / 10 min to 5 g / 10 min, bending strength is 60 MPa to 80 MPa, elongation at break is 500% to 700%, tear strength is 40 kN / m to 60 kN / m, bounce impact elasticity is 30% to 50%, ball indentation hardness is 98 to 99, and flexural modulus is 1.05 GPa to 1.45 GPa.

Description

technical field [0001] The invention relates to the field of pipe materials, in particular to a material for high-strength auto parts and a preparation method thereof. Background technique [0002] The world's major automobile companies have reformed their supply systems one after another, implementing global production and global procurement, that is, changing from purchasing from multiple auto parts manufacturers to purchasing from a small number of system suppliers; changing from single auto parts procurement to module procurement; from implementing domestic procurement Shift to global sourcing. The transformation of the procurement system of vehicle manufacturers requires auto parts manufacturers to continuously adapt to it. It not only requires auto parts manufacturers to expand their own strengths, improve product development capabilities, and achieve system development and system supply, but also requires them to shorten development time. cycle, providing high-qual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L51/06C08K13/02C08K3/22C08K3/32C08K5/3492C08K3/08C08K5/053
CPCC08L23/12C08L2203/18C08L2205/02C08L2205/035C08L23/0815C08L51/06C08K13/02C08K2003/2241C08K2003/323C08K5/34922C08K3/08C08K5/053
Inventor 王志兴
Owner WUXI YONGXING METAL HOSE