阅读说明：本技术 一种石英砂机械配件及其制备方法 (Quartz sand mechanical accessory and preparation method thereof ) 是由 周卫 于 2019-12-02 设计创作，主要内容包括：本发明属于机械配件用材料的技术领域,具体地说是一种石英砂机械配件及其制备方法。一种石英砂机械配件,其组成为：树脂、固化剂、稀释剂、消泡剂、石英砂、废旧轮胎粉、玄武岩纤维,本发明的石英砂机械配件在满足金属配件各项性能指标的同时,也保证了其他各项性能,如增加了机械配件的耐热性、振动阻尼性。(The invention belongs to the technical field of materials for mechanical accessories, and particularly relates to a quartz sand mechanical accessory and a preparation method thereof. A quartz sand mechanical accessory comprises the following components: the quartz sand mechanical accessory meets various performance indexes of metal accessories and simultaneously ensures other various performances, such as heat resistance and vibration damping performance of the mechanical accessory.)

1. The quartz sand mechanical accessory is characterized by comprising the following components in parts by weight:

1 part of resin;

curing agent: 0.03-0.07 part;

diluent agent: 0.1-0.2 parts;

defoaming agent: 0.00008-0.00015 part;

8-12 parts of quartz sand;

0.2-0.6 part of waste tire powder;

0-0.05 part of basalt fiber.

2. The quartz sand mechanical fitting of claim 1, wherein the basalt fibers have a length of 12-15mm and a diameter of 12-15 um.

3. The quartz sand mechanical accessory of claim 1, wherein the resin is an epoxy or acrylic resin.

4. The quartz sand machine component of claim 1, wherein the scrap tire powder is butadiene rubber.

5. The quartz sand tool fitting of claim 4 wherein the scrap tire has a particle size of 120-140 mesh.

6. The quartz sand machine kit of claim 1, wherein the defoamer is a silicone defoamer.

7. A silica sand mechanical accessory as claimed in claim 1, wherein the silica sand is graded as follows:

2-5 meshes, 30-40%;

2-3 meshes, 28-34%;

2-10 mesh, 1-3%;

5-15 meshes, 2.5-4%;

10-30 meshes, 7-9%;

30-100 meshes, 10-14%;

100-120 meshes, 4-6%.

8. The quartz sand machine component of claim 1, wherein the curing agent is an amine, anhydride, cyanate ester curing agent.

9. The quartz sand machine kit of claim 1, wherein the diluent is glycidyl ether oil.

10. The method for preparing a quartz sand mechanical fitting according to any one of claims 1 to 9, comprising the following specific steps:

(1) weighing the materials according to the formula dosage;

(2) adding the resin, the curing agent, the diluent and the defoaming agent into a stirrer and stirring for 5-6 minutes;

(3) adding 30-100 meshes of 100-120 meshes of quartz sand and 120-140 meshes of waste tire powder, and continuing stirring for 3-5 minutes;

(4) then adding quartz sand of 2-5 meshes, 2-3 meshes, 2-10 meshes, 5-15 meshes and 10-30 meshes, and stirring for 10-15 minutes until uniform;

(5) putting the uniformly mixed materials into a formed mould, and filling the materials densely; then placing the mixture on a vibration table for vibration, firstly vibrating for 20-30 minutes, then standing for 5 minutes, then vibrating for 10-20 minutes, standing for 1 minute, and then vibrating for 30-40 minutes; and curing for 72 hours after the vibration is finished, wherein the curing temperature is 45 ℃, and demoulding to obtain the machine accessory blank.

Technical Field

The invention belongs to the technical field of materials for mechanical accessories, and particularly relates to a quartz sand mechanical accessory and a preparation method thereof.

Background

The inventor of the invention discloses an artificial granite and marble mechanical fitting and a preparation method thereof in a patent number 200510043683.X, aggregate is adopted in the patent as natural granite or marble particles, and the obtained material can be used as a mechanical fitting. The inventor develops a new raw material to replace natural granite or marble particles and also meets the requirements of mechanical accessories.

However, the inventor of the invention further improves and innovates and provides a new mechanical accessory material which takes quartz sand as aggregate and is compounded with toughening material and a preparation method thereof.

The quartz sand is quartz particles formed by crushing and processing quartz stones. Quartz is a non-metallic mineral, a silicate mineral that is hard, wear resistant, and chemically stable. The color of the quartz sand is milky white or colorless and semitransparent, and the Mohs hardness is 7.

Quartz sand is an important industrial mineral raw material and a non-chemical hazardous article, and is widely used in the industries of glass, casting, ceramics and fireproof materials, ferrosilicon smelting, metallurgical flux, metallurgy, building, chemical engineering, plastics, rubber, grinding materials, filter materials and the like.

The quartz sand is a hard, wear-resistant and chemically stable silicate mineral, the main mineral component of the quartz sand is SiO2, the color of the quartz sand is milk white or colorless and semitransparent, the quartz sand has the hardness of 7, the quartz sand is brittle and has no cleavage, the shell-shaped fracture exists, the grease is glossy, the density is 2.65, the bulk density (1-20 meshes are 1.6-1.8), the 20-200 meshes are 1.5, the chemical, thermal and mechanical properties of the quartz sand have obvious anisotropy, the quartz sand is insoluble in acid, slightly soluble in KOH solution and the melting point is 1750 ℃.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a quartz sand mechanical fitting and a method for manufacturing the same. The quartz sand mechanical accessory meets various performance indexes of metal accessories, and simultaneously ensures other various performances, such as heat resistance and vibration damping of the mechanical accessory.

The technical scheme of the invention is as follows:

a quartz sand mechanical accessory comprises the following components in parts by weight:

1 part of resin;

curing agent: 0.03-0.07 part;

diluent agent: 0.1-0.2 parts;

defoaming agent: 0.00008-0.00015 part;

8-12 parts of quartz sand;

0.2-0.6 part of waste tire powder;

0-0.05 part of basalt fiber.

Furthermore, the length of the basalt fiber is 12-15mm, and the diameter is 12-15 um.

Further, the resin is epoxy resin or acrylic resin.

Further, the waste tire powder is butadiene rubber. The butadiene rubber has good toughness and wear resistance, and is used for machine tool components to improve the shock resistance and wear resistance of the machine tool components.

Furthermore, the powder mesh number of the waste tire is 120-140 meshes, so that the filling effect of the micro-aggregate is achieved, and the damping effect of the synthetic rubber can be utilized.

The defoaming agent is an organic silicon defoaming agent, so that the content of bubbles in a hardened body can be reduced, the internal defects can be reduced, and the mechanical property of the product can be improved.

Further, the curing agent is amine, acid anhydride or cyanate curing agent.

Further, the diluent is glycidyl ether oil.

Further, the grading composition of the quartz sand of the invention is as follows:

2-5 meshes, 30-40%;

2-3 meshes, 28-34%;

2-10 mesh, 1-3%;

5-15 meshes, 2.5-4%;

10-30 meshes, 7-9%;

30-100 meshes, 10-14%;

100-120 meshes, 4-6%.

The invention also aims to provide a preparation method of the quartz sand mechanical part, which comprises the following specific steps:

(1) weighing the materials according to the formula dosage;

(2) adding the resin, the curing agent, the diluent and the defoaming agent into a stirrer and stirring for 5-6 minutes;

(3) adding 30-100 meshes of 100-120 meshes of quartz sand and 120-140 meshes of waste tire powder, and continuing stirring for 3-5 minutes;

(4) then adding quartz sand of 2-5 meshes, 2-3 meshes, 2-10 meshes, 5-15 meshes and 10-30 meshes, and stirring for 10-15 minutes until uniform;

(5) putting the uniformly mixed materials into a formed mould, and filling the materials densely; then placing the mixture on a vibration table for vibration, firstly vibrating for 20-30 minutes, then standing for 5 minutes, then vibrating for 10-20 minutes, standing for 1 minute, and then vibrating for 30-40 minutes; and curing for 72 hours after the vibration is finished, wherein the curing temperature is 45 ℃, and demoulding to obtain the machine accessory blank.

The invention has the beneficial effects that:

the product obtained by the formula not only meets the requirements of hardness, rigidity and compactness, but also increases the vibration damping of the formed material.

After the waste tire powder is subjected to powder crushing treatment, the waste tire powder is prepared into 120-mesh 140-mesh fine particles, so that the filling effect of the micro-aggregate is achieved, and the damping effect of the synthetic rubber can be utilized.

The requirement of the mechanical property of the material is met by screening the granularity of the quartz sand, carrying out reasonable proportioning and synergistic effect.

The basalt fiber adopted in the formula has high elastic modulus and good toughness, and can improve the mechanical properties of the member, especially the bending strength and the performances of shock resistance and cracking resistance.

For the preparation method, the materials are stirred, so that the materials are mixed more uniformly, the quartz sand is in full contact with the resin, the resin is uniformly adhered to the surface of the quartz sand, the performance of the molded mechanical part is better, and the vibration damping effect is good.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.