The speed of the feed rate and the change of the temperature, the sound of the machine is very different. This requires constant exploration in practice, trying to keep the machine in the state of sound when running at its best.
In the production process of defining functional ceramics, it is desirable to obtain ultrafine raw material particles from the viewpoints of facilitating the firing and solid phase reaction, but the finer the powder, the larger the specific surface area, the worse the fluidity, and the easier the dry pressing. Evenly filling the mold, there are often problems with voids, incomplete corners, cracks, and elastic failure of the molded parts. The granulation process is often used to solve this problem.
The granulation process is to grind the fine powder, after drying and adding an adhesive, to prepare particles with good fluidity and a particle diameter of about 0.1 mm. Generally, the adhesive used should meet the following requirements: to have sufficient viscosity to ensure good formability and mechanical strength of the green body; all of the volatilization can be volatilized by high temperature, and no or little adhesive remains in the green body. Residue impurities; simple process, no corrosive, no adverse effect on ceramic properties. The commonly used adhesives for dry forming granulation are as follows: 1 Aqueous polyvinyl alcohol solution, the process for producing the adhesive is simple, the ceramic porosity is small, and the addition amount is 3% to 5%. 2 Paraffin wax has a melting point of about 50 ° C, has thermoplasticity, and the temperature rises and the viscosity decreases. When the temperature is higher than its melting point, it can flow and wet the surface of the ceramic particles to form an adsorption layer to bond. Dry pressing is beneficial to its cold fluidity. The amount of paraffin is usually about 8%. 3 Novolac, the production process of the adhesive is simple, the mechanical strength of the green body is high, and the addition amount is about 8% to 15%. 4 sulfite pulp waste liquid, the formula of the adhesive is: water 90%, sulfite pulp waste liquid 10%, the amount of addition is 8% to 10% of the porcelain powder, but the green strength is low.
Granulation method Plastic granulation is a process of plastic processing. In the process of plastic granulation, it is necessary to master the plastic granulation technique according to the performance and practice of the machine, in order to continuously improve the quality and process of plastic products.
Plastic granulation tips: learn to listen to sound.
The speed of the feed rate and the change of the temperature, the sound of the machine is very different. This requires constant exploration in practice, trying to keep the machine in the state of sound when running at its best.
Plastic granulation skills: learn to see.
It is very important to look at the material coming out of the nose, because this is the first key to finding the cause. If there is raw material, the temperature is too low, and it needs to be warmed; if there is a coke, the temperature is too high, and the temperature must be lowered.
Plastic granulation tips: look at the surface gloss and compactness of the particles.
Poor plasticization, loose particles: matte surface is due to improper control of granulation temperature and cooling water temperature.
In short, in the plastic granulation process, we must listen more and more to find out the problem, and then find the problem and correct it in time. Plastic granulation techniques can accumulate experience based on the different properties of the machine and the groping in practice.
Granulation Tips Plastic Granulation Tips: Learn to listen to sound.
The speed of the feed rate and the change of the temperature, the sound of the machine is very different. This requires constant exploration in practice, trying to keep the machine in the state of sound when running at its best.
Plastic granulation skills: learn to see.
It is very important to look at the material coming out of the nose, because this is the first key to finding the cause. If there is raw material, the temperature is too low, and it needs to be warmed; if there is a coke, the temperature is too high, and the temperature must be lowered.
Plastic granulation tips: look at the surface gloss and compactness of the particles.
Poor plasticization, loose particles: matte surface is due to improper control of granulation temperature and cooling water temperature.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
In the production process of defining functional ceramics, it is desirable to obtain ultrafine raw material particles from the viewpoints of facilitating the firing and solid phase reaction, but the finer the powder, the larger the specific surface area, the worse the fluidity, and the easier the dry pressing. Evenly filling the mold, there are often problems with voids, incomplete corners, cracks, and elastic failure of the molded parts. The granulation process is often used to solve this problem.
The granulation process is to grind the fine powder, after drying and adding an adhesive, to prepare particles with good fluidity and a particle diameter of about 0.1 mm. Generally, the adhesive used should meet the following requirements: to have sufficient viscosity to ensure good formability and mechanical strength of the green body; all of the volatilization can be volatilized by high temperature, and no or little adhesive remains in the green body. Residue impurities; simple process, no corrosive, no adverse effect on ceramic properties. The commonly used adhesives for dry forming granulation are as follows: 1 Aqueous polyvinyl alcohol solution, the process for producing the adhesive is simple, the ceramic porosity is small, and the addition amount is 3% to 5%. 2 Paraffin wax has a melting point of about 50 ° C, has thermoplasticity, and the temperature rises and the viscosity decreases. When the temperature is higher than its melting point, it can flow and wet the surface of the ceramic particles to form an adsorption layer to bond. Dry pressing is beneficial to its cold fluidity. The amount of paraffin is usually about 8%. 3 Novolac, the production process of the adhesive is simple, the mechanical strength of the green body is high, and the addition amount is about 8% to 15%. 4 sulfite pulp waste liquid, the formula of the adhesive is: water 90%, sulfite pulp waste liquid 10%, the amount of addition is 8% to 10% of the porcelain powder, but the green strength is low.
Granulation method Plastic granulation is a process of plastic processing. In the process of plastic granulation, it is necessary to master the plastic granulation technique according to the performance and practice of the machine, in order to continuously improve the quality and process of plastic products.
Plastic granulation tips: learn to listen to sound.
The speed of the feed rate and the change of the temperature, the sound of the machine is very different. This requires constant exploration in practice, trying to keep the machine in the state of sound when running at its best.
Plastic granulation skills: learn to see.
It is very important to look at the material coming out of the nose, because this is the first key to finding the cause. If there is raw material, the temperature is too low, and it needs to be warmed; if there is a coke, the temperature is too high, and the temperature must be lowered.
Plastic granulation tips: look at the surface gloss and compactness of the particles.
Poor plasticization, loose particles: matte surface is due to improper control of granulation temperature and cooling water temperature.
In short, in the plastic granulation process, we must listen more and more to find out the problem, and then find the problem and correct it in time. Plastic granulation techniques can accumulate experience based on the different properties of the machine and the groping in practice.
Granulation Tips Plastic Granulation Tips: Learn to listen to sound.
The speed of the feed rate and the change of the temperature, the sound of the machine is very different. This requires constant exploration in practice, trying to keep the machine in the state of sound when running at its best.
Plastic granulation skills: learn to see.
It is very important to look at the material coming out of the nose, because this is the first key to finding the cause. If there is raw material, the temperature is too low, and it needs to be warmed; if there is a coke, the temperature is too high, and the temperature must be lowered.
Plastic granulation tips: look at the surface gloss and compactness of the particles.
Poor plasticization, loose particles: matte surface is due to improper control of granulation temperature and cooling water temperature.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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