Laser Quenching equipment
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Used for surface strengthening, repair, and remanufacturing of components, the coating has high adhe...
Flexible processing of complex curved sheet metal parts, with high cutting accuracy, fast speed, and...
Specially designed for seamless welding of precision plastic components, with a small heat affected ...
Food machinery screws have strict coating requirements due to direct contact with food raw materials. When expanding, first explain the background of the coating requirements for food machinery screws, then delve into the details of the coating technology for Daokedao equipment, and finally demonstrate the effect with specific data and scenarios.
As a key component that directly contacts food raw materials, the surface coating of food machinery screws must meet the three core standards of non-toxic and harmless, high wear resistance, and easy cleaning. Traditional surface treatment processes often breed bacteria due to residual stains in coating pores, or cause food safety hazards due to wear and tear. However, the Daokedao automated laser cladding equipment uses high-energy density laser beams to instantly melt food grade stainless steel alloy powder onto the surface of the screw, forming a dense and pore free metallurgical bonding layer. The coating has been tested by authoritative institutions and fully complies with the GB 4806 series national food safety standards. Its surface roughness Ra is ≤ 0.8 μ m, achieving mirror level smoothness and effectively avoiding the adhesion of food residues.
Taking the screw renovation project of a well-known biscuit factory's noodle machine as an example, traditional chrome plated screws experience coating peeling after an average of 3 months under high humidity and strong stirring conditions. After laser cladding treatment, the surface hardness of the screw is increased to HRC55, the wear resistance is significantly enhanced, and the service life is extended to 7.5 months (an increase of 2.5 times); At the same time, the smooth cladding layer makes the cleaning process more efficient, reducing the single cleaning time from 40 minutes to 28 minutes (a 30% reduction), significantly reducing labor costs and equipment downtime, providing reliable guarantees for food safety production.
