Slurry machine is a specialized equipment for wax mold dipping in the investment casting industry, mainly used for the preparation of refractory coating slurry for shell making and the production of mold shell dipping slurry in investment casting. Here is a detailed introduction:
1. Structural composition
Barrel components: including an inner barrel and an outer barrel, the inner barrel is used to hold the slurry, and the outer barrel plays a protective role to prevent the slurry from splashing out. The barrel body is generally made of stainless steel material, which has good corrosion resistance and stability.
Mixing component: mainly composed of side baffles, bottom paddles, and paddle fixing frames, etc. The type of mixing paddle is usually L-shaped. There are two types of bottom impellers: straight impellers and inclined blade impellers. The inclined blade impellers can push the bottom slurry upwards to prevent sedimentation and make the mixing more uniform.
Transmission components: Adopting a belt transmission method, power is transmitted to the rotating parts of the propeller through pulleys. The belt transmission runs smoothly and has overload protection function. The structure is relatively simple and easy to adjust.
Cooling component: By wrapping a cooling water pipe around the barrel wall, it absorbs the heat generated during the mixing process of the slurry and maintains the temperature of the slurry within a certain range.
Detection components: including liquid temperature and liquid level measurement devices. The liquid temperature detection device monitors the temperature of the slurry in real time. When the slurry temperature exceeds the set temperature range, an alarm is triggered and the cooling water switch is associated; The liquid level detection device mainly monitors the high and low liquid levels, adjusts the depth of the mechanical arm's contact with the slurry according to the changes in the liquid level, and ensures that the shell is completely immersed in the slurry.
2. Working principle
Put the slurry in the slurry bucket, and drive the bucket to rotate through the bottom driving mechanism. At the same time, the slurry is synchronously stirred by the slurry lever set on one side of the bucket to maintain a uniform state of the slurry. Then immerse the wax mold or module into the slurry to evenly coat its surface, forming a layer of refractory coating, laying the foundation for the subsequent shell making process.
3. Performance characteristics
Uniform stirring: By using a rotating slurry bucket and an L-shaped stirring plate for fixation, the slurry can be stirred evenly, ensuring consistent performance and improving the quality of the mold shell.
Reliable operation: It has changed the direct connection reducer mode and has the reliability of long-term continuous operation, which can meet the production needs.
Easy to operate: The dipping operation is simple, safe and reliable, which can significantly improve labor intensity and increase production efficiency.
High precision: The slurry bucket is made of stainless steel material, and the ovality is strictly controlled, such as ovality not exceeding 3mm, which helps to ensure the mixing effect and uniformity of the slurry.