What are the surface treatment methods of engine mold
Posted by Admin
2023-12-11
Surface treatment is an important link in Engine Mold manufacturing, which directly affects the surface quality, wear resistance and corrosion resistance of the mold.
Sand blasting:
Introduction to Sandblasting: Sandblasting is a surface treatment method that removes oxide layers, burrs and other undesirable substances from the surface of workpieces by spraying abrasive particles at high speed. For Engine Mold, sandblasting can improve the surface quality and increase the smoothness of the mold.
Sandblasting materials: Commonly used abrasive materials for sandblasting include alumina, glass particles, silicon carbide, etc. Select the appropriate abrasive based on the required surface roughness and degree of cleaning.
Sandblasting Equipment: Sandblasting equipment typically uses compressed air to spray abrasive particles onto the surface of a workpiece. In the surface treatment of Engine Mold, appropriate sandblasting equipment and parameters are selected to ensure that the surface is cleaned without damaging the precise structure of the mold.
Polishing:
Introduction to polishing: Polishing uses friction and abrasives to gradually smooth the surface of the workpiece and improve its finish and surface quality. In the manufacture of Engine Mold, polishing is usually used to make the surface smoother and reduce surface roughness.
Polishing tools and abrasives: Polishing tools usually use rotating grinding heads, and the materials can be fabrics, felts, etc. The choice of abrasive depends on the required polishing effect. Common abrasives include aluminum oxide, iron oxide, tungstate, etc.
Polishing equipment: There are many types of polishing equipment, including manual polishing, mechanical polishing and chemical polishing. In Engine Mold manufacturing, mechanical polishing usually uses a CNC polishing machine to achieve efficient polishing of the mold surface through preset programs and parameters.
Plating treatment:
Introduction to coating: Coating is a surface treatment method that forms a thin film on the surface of the workpiece, aiming to improve surface hardness, wear resistance and corrosion resistance. For Engine Mold, commonly used coatings include chromium plating, nickel plating, nitride plating, etc.
Coating material selection: Material selection is directly related to the performance of the coating. Different coating materials have different hardness, corrosion resistance and thermal conductivity properties. Select the appropriate coating material according to the use environment and requirements of the Engine Mold.
Plating process: The plating process usually includes steps such as surface preparation, electroplating or physical vapor deposition. In the surface treatment of Engine Mold, ensuring surface cleanliness and uniformity of the coating is key to avoid the coating falling off or being uneven during use.
Coating treatment:
Coating introduction: Coating is a thin film formed on the surface of the workpiece to improve wear resistance, corrosion resistance and reduce friction coefficient. In the manufacture of Engine Mold, the coating can use hard coating (such as tungsten carbide coating), solid lubricant coating, etc.
Coating material selection: Coating material selection depends on the specific requirements of the mold. Hard coatings typically include tungsten carbide, titanium nitride, etc., while lubricating coatings may include polymers or paints containing solid lubricants.
Coating process: The coating construction process includes spraying, dipping, physical vapor deposition, etc. For Engine Mold, ensuring the adhesion, uniformity and thickness of the coating is key to ensure the performance of the mold in actual use.