Wear-resistant coating for lithium electrode sheet roll-Zhengzhou Lijia Thermal Spray Machinery Co,. Ltd

Wear resistant coating for lithium electrode sheet roll

High wear resistance: during the working process, the roller is affected by abrasive wear, adhesive wear and fretting wear, and the wear resistance is not enough, which not only affects the accuracy of the roll surface and the quality of the pole piece, but also reduces the production benefit;

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Pole sheet roll requirements

High density: compact structure, low porosity, high corrosion resistance, is also conducive to prevent the pole piece coating and other foreign matter into the roll surface;

High precision: the straightness, ovality and coaxiality of the roller are required to be high, otherwise it will cause uneven thickness of the battery pole piece and poor binding force.

characteristics

The company uses HVOF thermal spraying technology to prepare multi-component cermet composite coating on the surface of high precision roll of lithium battery, which has the following characteristic

01 the coating hardness is high, microhardness of 1100-1400HV0.3, has extremely high wear resistance
02 the coating structure is uniform and compact, low porosity, (<0.6%), no material, no reaction with the battery electrode material;
03 the coating binding strength is high, using FM1000 glue test, up to 90Mpa.
04 After finishing with external high precision CNC grinder, the straightness, ovality and coaxiality of the high precision roller are ensured to be less than 0.002mm

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