White corundum powder coating method
A technology of white corundum powder and coating, which is applied in coating, casting equipment, molds, etc., can solve the problems of casting sand sticking, bubbles, and expensive zirconium substances, and achieve the effect of avoiding sand sticking.
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Embodiment 1
[0011] The brushing method of white corundum powder coating comprises the following steps:
[0012] Step 1: Prepare a white corundum powder paint with a Baume degree of 76°Bé, paint the surface of the sand mold cavity for the first time, ignite it immediately after painting, and then cool to room temperature;
[0013] Step 2: Prepare a white corundum powder paint with a Baume degree of 58°Bé, and paint the surface of the sand cavity for the second time. After the paint is finished, wait for 30 seconds to ignite, and then cool to room temperature;
[0014] Step 3: Prepare white corundum powder paint with a Baume degree of 42°Bé, and paint the third time on the surface of the sand mold cavity. After the paint is completed, wait for 60 seconds to ignite, then cool to room temperature, and the paint is completed.
[0015] Baume degree °Bé is a method to express the concentration of the solution. The Baume hydrometer is immersed in the measured solution, and the degree obtained is ...
Embodiment 2
[0017] The brushing method of white corundum powder coating comprises the following steps:
[0018] Step 1: Prepare a white corundum powder paint with a Baume degree of 80°Bé, paint the surface of the sand mold cavity for the first time, ignite it immediately after painting, and then cool to room temperature;
[0019] Step 2: Prepare a white corundum powder paint with a Baume degree of 56°Bé, and paint the surface of the sand mold cavity for the second time. After the paint is finished, wait for 40 seconds to ignite, and then cool to room temperature;
[0020] Step 3: Prepare white corundum powder paint with a Baume degree of 42-50°Bé, and paint the surface of the sand cavity for the third time. After the paint is finished, wait for 45 seconds to ignite, then cool to room temperature, and the paint is completed.
Embodiment 3
[0022] The brushing method of white corundum powder coating comprises the following steps:
[0023] Step 1: Prepare a white corundum powder paint with a Baume degree of 84°Bé, paint the surface of the sand cavity for the first time, ignite it immediately after painting, and then cool to room temperature;
[0024] Step 2: Prepare white corundum powder paint with a Baume degree of 58°Bé, and paint the surface of the sand cavity for the second time. After the paint is finished, wait for 60 seconds to ignite, and then cool to room temperature;
[0025] Step 3: Prepare a white corundum powder paint with a Baume degree of 50°Bé, and paint the surface of the sand mold cavity for the third time. After the paint is completed, wait for 55 seconds to ignite, then cool to room temperature, and the paint is completed.
[0026] Adopting the brushing method of the white corundum powder paint provided by the present invention ensures that no air bubbles will be generated after the painted coa...
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