Laser cylinder seal material selection of bearing

Even at high temperatures, polyformaldehyde in general organic solvent weight variation is only 0. 3% - Only 0 3%, size change. 1% - 1%.

polyformaldehyde has excellent mechanical function, and can be used thermoplastic molding method of general forming, in automobile industry, machinery industry, electronic industry, building materials and other industries widely used. Cutting machine function less than bearing bushing, piston rod baffle or piston easy cut to the outer cylinder wall, serious cause cylinder scrap.
3, the application range of the two materials and the processing method of
the nylon 1010 has high hardness, stiffness, good processing manufaturability, but greatly influenced by temperature.
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polyoxymethylene is a high melting point, high density, crystalline linear polymers, has good comprehensive function, tensile strength, impact toughness, stiffness, fatigue strength and creep not promiscuous sexual function and size are good, small water imbibition, has good resistance to chemicals and solvent resistance, especially the organic solvent and oil. Especially suitable for making friction resistance and the parts under high load. Bearing bushing material impact on the quality of oil cylinder, bearing bushings of non-metallic materials commonly used for nylon 1010 and polyformaldehyde. Polyoxymethylene can instead of copper, zinc, aluminum and other non-ferrous metal production structure parts.
laser oil cylinder is the main execution parts, engineering machinery cutter many action performed by oil cylinder.
a, bearing bushing assembly parts and assembly clearance
bearing bushing in the guide sleeve ( Material is nodular cast iron) Inner groove, plays a role of guidance and support of the piston rod, the inner and outer diameter of the piston rod, the design of clearance is 0. 08 - 0. 16mm。 Used in engineering machinery, machine tool equipment less affected by temperature. Assembly clearance should be to adjust bearing bushing, as shown in figure 1, the cutting machine the size of the beam assembly clearance in the bearing bushing is primarily B, the tolerance requirement for the mm.





unidirectional and bidirectional cutting machine of the specified function
bearing bushing diameter contact with oil cylinder cylinder diameter, design clearance of 0. 1 - 0. 19mm。 As a result, not only used in the machine manufacture, can also be used for equipment maintenance. Working temperature is commonly - 40 - 140℃。 Second, the functional characteristics of two kinds of material of nylon 1010
strength, rigidity, heat resistance are better, molding technology is better; Poor water imbibition and shrinkage is bigger, size not disorderly, are greatly influenced by temperature, working temperature range for - 30 - 80℃。
visible and assembly clearance is essential to the quality of oil cylinder. Less than zero. 8 mm, large in the resistance movement of the piston rod and oil cylinder tremble, bearing bushing wear faster, serious when accompanied by sound, lose supporting role; Clearance more than 0. 16 mm, is easy with the piston rod eccentric wear, bushing force, unilateral leaked oil cylinder, piston rod with oil. Less than zero. When the 1 mm, the piston rod motion resistance increase, can't keep constant motion, is more significant when the oil temperature is high. Defect is heat decomposition, forming problem than nylon. Cast into bars or tubes with raw material, using ordinary lathe can processing molding, still can adjust their research and other processing after forming.
two materials has good practicability and workability.






needle brake type laser cutting machine with giving birth to a marketing plan