JP2008542172A - Artificial granite, marble machine parts and preparation method thereof - Google Patents

Abstract

  The present invention demonstrates artificial granite, marble machine parts and their preparation methods, and belongs to the machine part machining area. Artificial granite and marble machine parts were prepared from 80% -93% aggregate and 20% -7% glue by weight through crafting processes such as compounding, casting, and packing. Among them, aggregates are natural granite grains and marble grains of size 0.01-25mm. Compared with the existing technology, the artificial granite and marble machine parts of the present invention have stronger vibration damping and lower cost, and are widely used for parts such as machine tool equipment, measuring equipment, instruments, etc. Worthy of.

Description

Detailed Description of the Invention

〔Technical field〕
The present invention relates to non-metallic machine parts, specifically artificial granite, marble machine parts and methods for their preparation.

[Background Technology]
Based on the existing technology, various machine tools and measuring equipment are machined with metal materials such as ordinary cast iron and steel. As the demand for machining accuracy of machine parts becomes stricter, the operating speed of machine tools has been greatly increased, so that severe vibration is inevitable in the machining process. However, because metal materials have a weak vibration damping capability, the machine tools cannot absorb the vibrations generated during the operation process effectively, and because the thermal expansion coefficient of the metal materials is large, the installation and adjustment process of equipment is extremely difficult. Therefore, the processing accuracy of parts is greatly limited. In addition, there are disadvantages such as environmental pollution and the consumption of heat energy is large in the processing of metal machine parts.

  At present, there are many technologies that can produce artificial granite or artificial marble materials, but physical indexes such as strength and hardness cannot be achieved to meet the performance requirements of mechanical parts, so it can only be a decorative material.

[Disclosure of the Invention]
[Problems to be Solved by the Invention]
The technical mission of the present invention is to provide artificial granite and marble machine parts for the above-mentioned lack of existing technology. This machine part was made of non-metallic synthetic material and reached each performance index of the metal part, and at the same time, the vibration damping and heat resistance of the part increased, greatly reducing the production cost.

  Another technical task of the present invention is to provide a method for preparing this artificial granite, marble machine part.

  The technical mission of the present invention is realized in the following manner: Artificial granite, marble machine parts are prepared with the following weight proportions of raw materials.

Aggregate 80-93% Glue 20% -7%
The aggregate here is a natural granite grain or marble grain of size 0.01-25mm.

The composition of aggregate sizes here and the weight percentage of grains within each size range is:
8-25mm size grain: 55% -60%;
1-8mm grain of size: 20% -25%;
Stone powder of size 0.01-0.5mm: 15% -25%.

  The glue here is an epoxy resin or an acrylic resin.

  The optimum preparation method of the artificial granite and marble machine parts of the present invention is divided into the following setups.

  a. Aggregate and glue are measured at the blending ratio, and both are mixed on average before being put into the mold.

  b. Place the mold after putting it in the mold on the shaking table, vibrate for 30-60 minutes and pack it tightly.

  c. Leave for 48-60 hours at a temperature of 20-40 ° C., and as soon as it leaves the mold, it becomes a crude material for machine parts.

  In addition, in order to enhance the performance of machine parts, the raw material also contains an accelerator containing 1% -5% glue. The promoter is talc powder, natural granite powder or natural marble powder of size 0.01-0.5mm.

  The preparation method is divided into the following setup.

  a. Aggregates, glues and accelerators are measured at the blending ratio, and the three are mixed on average before being put into the mold.

  b. Place the mold after putting it in the mold on the shaking table, vibrate for 30-60 minutes and pack it tightly.

  c. Leave for 48-60 hours at a temperature of 20-40 ° C., and as soon as it leaves the mold, it becomes a crude material for machine parts.

  The mechanical component of the present invention is a non-metallic synthetic mechanical component prepared by using granite or marble as an aggregate, and has the following remarkable beneficial effects as compared with the metal mechanical component of the existing technology.

  (1) Vibration damping is relatively strong.

  Reduce equipment installation and adjustment time.

  When measuring with optical sensitive equipment, ideal images can be acquired faster.

  Provides very good stability for a quick overview.

  Reduced the vibration generated during high-speed machining process, so the machining accuracy of parts is increased.

  (2) Cost is low.

  No need for precision machining and machining twice.

  Reduce the use of correspondingly expensive structural materials.

  (3) Good heat resistance.

  The expansion coefficient is small compared to metal parts.

  The heat-resistant gradient is small.

[Best Mode for Carrying Out the Invention]
The following describes in more detail the beneficial effects of the machine parts in the present invention through examples and physical performance experimental data.

Example 1 Aggregate: 90kg of natural granite grains
Among them, the size of 8-10mm grains occupies 58% and weighs 52.2kg.

  The size of 1-2mm grains is 22% and weighs 19.8kg.

  The powder of size 0.01-0.5mm occupies 20% and weighs 18kg.

Glue: Epoxy resin 10kg
Accelerator: Talc with 3% glue, weight 10 x 3% = 0.3kg, size 0.01-0.5mm.

Preparation setup:
a. Aggregates of different sizes are selected according to the mixing ratio, and they are mixed and prepared on average.

  b. Prepare and measure epoxy resin and talc powder at the blending ratio.

  c, The above aggregate, glue and talc powder are mixed thoroughly and put into mold, shaken for 35 minutes on a shaking table and packed tightly, and finally put at 20-30 ° C for 48 hours, As soon as it leaves the mold, it becomes a raw material for machine parts.

Product physical property indicators are as follows:
Density 2.32g / cm2
Pressure strength 110-117MPa
Tensile resistance 15.2MPa
Fracture strength 17.2 MPa
Mr. Tsuji elasticity 35.982MPa
Poisson's ratio 0.23
Coefficient of thermal expansion 16.9 × 10−6mm / mm ℃
Thermal conductivity 0.24Wcm / ℃
Specific heat 0.23−0.26cal / g ℃
A sample of 1.5in. × 1.5in. × 9in. Bar strength casting material was tested and tested for its vibration damping capacity at 70 degrees Fahrenheit, and the test results of steel, cast iron and aluminum oxide respectively Contrast with The results are as shown in FIGS. The casting reduction capacity of the casting of the present invention is nearly 45 times higher than aluminum oxide, but nearly 10 times higher than cast iron and steel.

Example 2 Aggregate: Natural marble grain 85kg
Among them, the size of 10-14mm grains account for 56% and weigh 47.6kg.

    The size of 2-3.5mm grains occupy 24% and weighs 20.4kg.

    The powder of size 0.01-0.5mm occupies 20% and weighs 17kg.

Glue: Epoxy resin 15kg
Accelerator: natural marble powder with 4.5% glue, weight 15 x 4.5% = 0.675kg, size 0.01-0.5mm.

Preparation setup:
a. Aggregates of different sizes are selected according to the blending ratio and prepared by mixing them on average.

  b. Prepare and measure epoxy resin and natural marble powder at the blending ratio.

  c. Mix the above aggregate, glue and natural marble powder as a promoter well, put in a mold, shake on a shaking table for 45 minutes, and pack it at 25-35 ℃. After 60 hours at temperature, as soon as it leaves the mold, it becomes a crude material for machine parts.

Example 3 Aggregate: Natural granite grain 82kg
Among them, 14-24mm size grains account for 59% and weigh 48.38kg.

    The 4.5-8mm size grains account for 23% and weigh 18.86kg.

    The powder of size 0.01-0.5mm occupies 18% and weighs 14.76kg.

Glue: Acrylic resin 18kg
Accelerator: natural granite powder with 1.5% glue, weight 18x1.5% = 0.27kg, size 0.01-0.5mm.

Preparation setup:
a. Aggregate of appropriate size is selected according to the blending ratio and prepared by mixing it on average.

  b. Prepare acrylic acid resin and natural granite powder by mixing ratio.

  c, The above aggregate, glue and natural granite powder as an accelerator are mixed well, put into a mold, shaken on a shaking table for 50 minutes and packed tightly, and finally at 30-40 ℃ After 60 hours at temperature, as soon as it leaves the mold, it becomes a crude material for machine parts.

Example of the invention—Measurement of the bar strength of a prepared artificial granite machine part. Measurement diagram of the bar strength of steel. Measured figure of bar strength of cast iron. Measurement chart of bar strength of aluminum oxide.

Claims (6)

The feature of artificial granite and marble machine parts is that they are prepared with raw materials with the following weight proportions,
Aggregate 80-93%, glue 20% -7%,
These aggregates are characterized by natural granite grains or marble grains with a size of 0.01-25 mm. The feature of the artificial granite / marble machine part according to claim 1 is that the aggregate is composed of natural granite or marble grains within the following size range.
8-25mm size grain: 55% -60%;
1-8mm grain of size: 20% -25%;
Stone powder of size 0.01-0.5mm: 15% -25%.   The feature of the artificial granite and marble machine part according to claim 1 is that the glue is an epoxy resin or an acrylic resin. The feature of the method for preparing a machine part according to claim 1 is that it is divided into the following setups.
a. Aggregate and glue are measured at the blending ratio, both are averaged and mixed, and then placed in the mold.
b. Place the mold after putting it in the mold on the shaking table, vibrate for 30-60 minutes and pack it tightly.
c. Leave for 48-60 hours at a temperature of 20-40 ° C., and as soon as it leaves the mold, it becomes a crude material for machine parts.   The artificial granite / marble machine part according to claim 1 is characterized in that the raw material also includes an accelerator containing 1% -5% by weight of glue, the accelerator having a size of 0.01-0.5 mm. Talc powder, natural granite powder or natural marble powder. The feature of the method for preparing a machine part according to claim 5 is that it is divided into the following setups.
a. Aggregates, glues and accelerators are measured at the blending ratio, and the three are mixed on average before being put into the mold.
b. Place the mold after putting it in the mold on the shaking table, vibrate for 30-60 minutes and pack it tightly.
c. Leave for 48-60 hours at a temperature of 20-40 ° C., and as soon as it leaves the mold, it becomes a crude material for machine parts

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