Small steel ball down growth

Small steel ball to remember 2020 - growth 01 - 08 steel ball is the core component of bearing industry, plays a vital role to the service life of the bearing, its production process directly affects the quality of the product. Number 1, each specification of raw material, the furnace of steel should be the factory inspection. More than 30 mm and ball USES straight for the bar heating ( Heading) System, below 30 mm steel ball materials need to drawing, grinding rear can use. 2, pressing under the condition of normal temperature or heating, plastic deformation in the raw materials, forming ball billet. 3, light grinding by iron rotational circulation plunge cut, remove the blank of the band, the basic ground into spherical ball billet. 4, light grinding two further improve the steel ball surface roughness and roundness, has the light industry, light grinding becoming procedure, generally referred to as the ball. 5, the steel ball into roller heat treatment furnace, heat treatment after quenching and tempering, the steel ball inside organization change, has a certain hardness, toughness and crush load. 6, surface strengthening after heat treatment of steel ball load strengthening mixing mill, roller rotation drive the ball to collide with each other, make the elastic deformation of steel ball surface in macro and micro plastic deformation, improve the steel ball surface compressive stress and the uniformity of surface hardness. 7, hard alloy cast iron plate to the plate, with grinding wheel to turn the plate, and grinding under a certain pressure, further eliminate process before machining defects and heat treatment during decarburizing, oxidation, surface tissue troostite, further improve the size precision of the steel ball, the ball precision and surface quality. 8, in the early research using two pieces of cast iron grinding plate ( To improve the efficiency of grinding, also can use resin grinding wheel board) , adding abrasive, through certain pressure and mechanical cycle, meet requirements in the process of geometric accuracy and surface quality. 9, lapping lapping plate with two pieces of cast iron, to join the abrasive, and mixed grinding, grinding fluid auxiliary under certain pressure and mechanical movement, the consumption quantity of fine grinding, according to the different level of precision, to improve the quality of steel ball surface precision and surface. 10, cleaning by homemade cleaning machine, drum washing machine cleaning adhered on the surface of the steel ball grinding paste, change through regular inspection, cleaning fluid, ensure the steel ball surface cleanliness. 11, appearance/inspection/photoelectric ( Finished goods inspection) 100% artificial pick appearance, plus AVKIO eddy current flaw detection, steel ball, photoelectric detection means choose appearance of various kinds of defects such as surface defects, play a crack, internal defects. Final inspection of each batch steel ball according to the technological requirements, such as steel ball roundness, roughness, vibration, crushing load, hardness, etc. , to ensure product quality. Artificial appearance of eddy current flaw detection photoelectric appearance vibration detector roughness tester roundness tester crush load machine digital display hardness tester adopts the anti-rust oil, rust, packaging, 13 to spray anti-rust and classify packaging according to customer's request. 14, growth process ( Source: bearing roller trustworthy team)