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The process of rack

Updated:2013-08-13 22:09:48Clicks:775Times font size:T|T
The process of one kinds of the rack , for the high hardness , high-precision rack processing, including a heat treatment of the material , machining and surfacing tooth copper layer , the use of two wire cutting tooth and two tooth treatment , wherein th

The process of one kinds of the rack , for the high hardness , high-precision rack processing, including a heat treatment of the material , machining and surfacing tooth copper layer , the use of two wire cutting tooth and two tooth treatment , wherein the first first heat treatment to eliminate the internal stress of the material rack , and then the first wire cutting tooth , tooth 1 ~ 2mm left margin ; second heat treatment to achieve tooth hardness , and then the ends of the rack for welding copper layer in the car , cylindrical grinding after the second line cutting tooth , to rack and cylindrical coaxial . The present invention through two heat and two wire cutting tooth alternately, so that both the rack obtained after heat treatment to overcome 40Cr material hardenability problems and achieve hardness requirements , but also to ensure the accuracy of tooth ; while improving concentricity with the outer tooth . In ensuring the overall hardness of the tooth while the tooth precision meet the design requirements, improve processing quality rack .
     The process of one kinds of the rack , for the high hardness , high-precision rack processing, including a heat treatment of the material , machining and surfacing tooth copper layer , characterized in that: the use of two wire-cutting tooth and two tooth treatment , wherein the first heat treatment to eliminate the internal stress of the material rack , and then the first wire cutting tooth , tooth 1 ~ 2mm left margin ; second heat treatment to achieve tooth hardness , and then the teeth both ends of the copper layer surfacing in the car park outside the mill after a second wire cutting tooth , reaching coaxial rack and outside the park .

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