Medium-frequency heat treatment system and heat treatment process for petroleum tool irregular materials

Abstract

The invention discloses a medium-frequency heat treatment system and heat treatment process for petroleum tool irregular materials. The heat treatment system comprises a medium-frequency heater, a discharge rack, a feed rack, a sprayer and a circulating air cooler, wherein the discharge rack and the feed rack are respectively arranged at the left end and the right end of the medium-frequency heater; the sprayer is arranged above the middle part of the medium-frequency heater; and the circulating air cooler cooperates with the sprayer for use. The heat treatment process comprises the following steps: (1) cleaning the petroleum tool irregular materials; (2) heating the petroleum tool irregular materials, soaking, and water-cooling and air-cooling at the same time; (3) heating the petroleum tool irregular materials, soaking, and air-cooling; and (4) inspecting before warehousing. The invention has the advantages of simple process steps, favorable process parameters, reasonable system structure, high heat treatment efficiency and simple control operation. The invention can effectively avoid the phenomena of cracking and laminating at the end of the petroleum tool irregular material, prevent cooling water from entering the inner bores and ensure that the inside and the outside thereof are uniformly heated. The whole treatment process does not have oxidation or decarbonization, thereby having no pollution.

Description

technical field [0001] The invention relates to a heat treatment system and a heat treatment process, in particular to an intermediate frequency heat treatment system and a heat treatment process for long and short materials of petroleum tools. Background technique [0002] There are many parts in the mining and petroleum exploration industries. In order to improve their mechanical properties, improve durability and prolong service life, heat treatment is required. At present, the intermediate frequency heat treatment devices for long and short materials of petroleum tools mostly use cooling water to directly spray the surface of long and short materials, without cooling the inside of them, so that during the specific operation process, cooling water can easily enter the inner holes of long and short materials, making The internal and external heating of long and short materials is uneven, which leads to defects and end cracks of long and short materials, and even delaminati...

AI Technical Summary

Problems solved by technology

At present, the intermediate frequency heat treatment devices for long and short materials of petroleum tools mostly use cooling water to directly spray the surface of long and short materials without cooling treatment inside, so that during the specific operation process, cooling water can easily enter the inner holes of long and short materials, making The uneven heating inside and outside of the long and short materials will lead to defects and end cracks in the long and short materials, and even delamination on the end surface, which affects the heat treatment quality of the long and short materials and reduces the material utilization rate

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