According to the mold to process the prototype of the product, that is, semi-finished products or accessories, including Necklace accessories, small round beads or olive beads. Then, these semi-finished products will be transferred to the chain to connect each part of the necklace, thus forming a preliminary complete necklace mold making: wax molds are cast by plastic molds. This process is called wax injection for short. The wax used for making wax models is made of various waxes with different properties. Thereby obtaining a synthetic wax having a desired melting point, hardness. No matter what wax is used, the general requirement is that it has a certain strength, can be completely burned without residue, and the shorter the melting distance is, the better. Wax molds can be divided into the following three categories: 1. Wax for injection: good wax for injection should have a low melting point, good fluidity, fast solidification, appropriate elasticity, and easy to take out from the rubber mold. Commercial waxes on the market have various colors such as green and red to distinguish their properties. Green wax is most commonly used. The melting and injection temperature of good wax is between 63 ℃ and 74 ℃. The lower the temperature, the smaller the wax shrinkage. If the injection temperature is too high, the wax will flow into the slit of the rubber mold, suck in air, and form small bubbles in the wax when cooled 2. Wax injection: melt the wax through the wax injection machine and inject it into the plastic mold with pressure. The plastic mold injected with wax should be kept for 2-3 minutes. After the wax mold is cooled, take out the wax mold carefully. The temperature of wax melting during wax injection is adjusted according to the nature of wax. The air pressure is adjusted according to the thickness of the wax mold, generally controlled at 4 ~ 10 atmospheric pressure, and the thick wax mold uses a higher pressure. During wax injection, clamp the plastic mold with two aluminum plates or steel plates or plexiglass plates, hold them with both hands, align them with the wax injection nozzle and step on the foot control switch to start wax injection. When the indicator light goes off, the wax pattern is filled 3. Take the wax mold: take the wax mold out of the rubber mold at a good time. If the wax is not completely solidified too early, it cannot be formed; If it is too late, it will harden and become brittle, and it is easy to break when taken out. The injected and cooled rubber mold is placed on the workbench, and the lower mold is held by one hand, and the other hand is slowly bent to open the upper mold, while the wax mold is still in the lower mold, and then the lower mold is picked up and slightly bent to take out the wax mold. If there is any minor defect on the surface of the removed wax model, it can be properly repaired by wax filling and scraping.
For the ring, it's ok if the gram of the mold is greater than 0.3 to 0.5g of the mold. It's ok if the gun burns for 5 minutes and the oil sludge pressure is used. Those who don't understand are asking me
According to the mold to process the prototype of the product, that is, semi-finished products or accessories, including Necklace accessories, small round beads or olive beads. Then, these semi-finished products will be transferred to the chain to connect each part of the necklace, thus forming a preliminary complete necklace
mold making:
wax molds are cast by plastic molds. This process is called wax injection for short. The wax used for making wax models is made of various waxes with different properties. Thereby obtaining a synthetic wax having a desired melting point, hardness. No matter what wax is used, the general requirement is that it has a certain strength, can be completely burned without residue, and the shorter the melting distance is, the better. Wax molds can be divided into the following three categories:
1. Wax for injection: good wax for injection should have a low melting point, good fluidity, fast solidification, appropriate elasticity, and easy to take out from the rubber mold. Commercial waxes on the market have various colors such as green and red to distinguish their properties. Green wax is most commonly used. The melting and injection temperature of good wax is between 63 ℃ and 74 ℃. The lower the temperature, the smaller the wax shrinkage. If the injection temperature is too high, the wax will flow into the slit of the rubber mold, suck in air, and form small bubbles in the wax when cooled
2. Wax injection: melt the wax through the wax injection machine and inject it into the plastic mold with pressure. The plastic mold injected with wax should be kept for 2-3 minutes. After the wax mold is cooled, take out the wax mold carefully. The temperature of wax melting during wax injection is adjusted according to the nature of wax. The air pressure is adjusted according to the thickness of the wax mold, generally controlled at 4 ~ 10 atmospheric pressure, and the thick wax mold uses a higher pressure. During wax injection, clamp the plastic mold with two aluminum plates or steel plates or plexiglass plates, hold them with both hands, align them with the wax injection nozzle and step on the foot control switch to start wax injection. When the indicator light goes off, the wax pattern is filled
3. Take the wax mold: take the wax mold out of the rubber mold at a good time. If the wax is not completely solidified too early, it cannot be formed; If it is too late, it will harden and become brittle, and it is easy to break when taken out. The injected and cooled rubber mold is placed on the workbench, and the lower mold is held by one hand, and the other hand is slowly bent to open the upper mold, while the wax mold is still in the lower mold, and then the lower mold is picked up and slightly bent to take out the wax mold. If there is any minor defect on the surface of the removed wax model, it can be properly repaired by wax filling and scraping.
For the ring, it's ok if the gram of the mold is greater than 0.3 to 0.5g of the mold. It's ok if the gun burns for 5 minutes and the oil sludge pressure is used. Those who don't understand are asking me
Hot melt the gold and inject it into the mold
Melt the gold into the mold