For carbon steel throat hoop, it is not a spring throat hoop, it should strictly implement the measurement management system, requiring the operator in accordance with the system and throat hoop heat treatment of the quality requirements of the correct use of maintenance measuring instruments, requirements of the measurement department in accordance with the provisions of the calibration of measuring instruments, maintenance and identification work. Because sometimes the temperature control instrument table a little error will affect the operator's judgment.

Clamp material (material) For heat treatment production of throat hoop, although the material has been determined in the design, its own factors can not be controlled, but in the process of heat treatment production, transfer, inventory, work will often appear mixing, wrong material, loss, rust, bump and deformation of high strength clamp heat treatment quality factors, Through the careful and effective work of relevant personnel, the occurrence of bad phenomena such as mixing, missing and wrong materials can be avoided.

In addition, in the heat treatment of throat hoop quality, the inspection department is required to do a good job of material inspection, status identification work (such as using different colors of oil to distinguish different steel numbers), the material storage department to do a good job of material identification, hair, transport, storage work; The production department works carefully, does a good job of marking, storage, custody of products in process, finds problems in time and notifies relevant departments to deal with them in time.

In heat treatment production, many high strength clamp material problems can be repaired by the corresponding technology as long as they are found in time. For example, the hardened bolt was later found to have used ML35 steel by mistake. After reducing the tempering temperature, the tensile strength was tested to be qualified and the bolt was released for use. If the deformation of longer specification bolts exceeds the standard, it can be solved by the corresponding straighter process.