Simultaneous induction heating and quenching process for four planes of a commercial vehicle brake caliper bracket

Abstract

The invention relates to a four-plane simultaneous inductive heating-quenching process method for a commercial vehicle brake caliper bracket. The process method is characterized in that four adjacentlimiting faces on a single side of the brake caliper bracket are heated and quenched simultaneously; effective heating leads of the limiting faces have U-shaped structures; current in U-shaped doubleheating leads is equal in magnitude and opposite in directions; four adjacent limiting faces at one end of the brake caliper bracket belong to one group, and four adjacent limiting faces at the otherend belong to one group; four corresponding U-shaped heating leads on the four adjacent limiting faces in each group are welded in series into a whole, thereby constructing a four-plane simultaneous heating inductor structure; two groups of four-plane simultaneous quenching inductors are adopted in total; simultaneous heating-quenching is performed on the four adjacent limiting faces on the singleside of the brake caliper bracket by the four-plane simultaneous heating-quenching inductors, and quenching processing of all eight limiting faces can be finished by symmetrically changing positionstwice on left and right sides. According to the process method, preheating, upward-downward reciprocating movement scanning heating and static heating are combined organically to perform the technicalcontrol processes of continuous heating and conductive temperature equalization on the limiting faces.

Description

technical field [0001] The invention relates to a four-plane simultaneous induction heating and quenching process of a commercial vehicle brake caliper bracket, which belongs to the field of commercial vehicle disc brake parts processing. Background technique [0002] The brake caliper bracket is an important part of the new series of commercial vehicle disc brake assemblies newly developed by FAW Technology Center. It is mainly responsible for supporting and positioning related parts and limiting the running track of the brake pads. The overall structure of the piece is complex, cast and formed, and made of ductile iron (QT600-5). In order to meet the service conditions and ensure the reliability of the limit function, there are as many as 8 limit surfaces of the brake caliper bracket (four symmetrical places on the left and right), and they are all small plane structures. The area of ​​the quenching area is about 20×30mm², which is distributed in three dimensions , all re...

AI Technical Summary

Problems solved by technology

Poor uniformity of heating temperature distribution is the direct cause of uneven distribution of surface hardness and hardened layer depth

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