Steel wire water bathing and air cooling quenching unit

Abstract

The invention discloses a steel wire water bathing and air cooling quenching unit which comprises a water bathing quenching unit body and an air cooling quenching unit body. The air cooling quenching unit body is arranged on the downstream portion of the water bathing quenching unit body, and the air cooling quenching unit body and the water bathing quenching unit body are in mutual linkage. The water bathing quenching unit body is provided with a plurality of water baths, the length of the water baths is controlled through movable baffles capable of moving, and accordingly the water bathing quenching time for steel wires is controlled. The air cooling quenching unit body can control the temperature independently and intelligently, and the influences of the environment temperature on air cooling are reduced. According to the water bathing and air cooling quenching unit, the quenching time and quenching length can be adjusted freely, and products with different specifications and strengths can be produced at the same time; and in addition, the water bathing and air cooling quenching unit can control the temperature independently, so that the steel wires are quenched within the required quenching temperature range all the time, the quenching effect of the steel wires is improved, and the stability of mechanical properties of the steel wires is guaranteed.

Description

Technical field [0001] The invention relates to a steel wire water bath and air cooling quenching unit, which is used for isothermal water bath quenching and air cooling quenching of steel wires. Background technique [0002] Steel wire isothermal water bath and air cooling quenching is a heat treatment process of immersing steel wire in an aqueous solution containing high molecular polymer for continuous rapid cooling, rapid air cooling, air cooling and heat preservation. In order to achieve this goal, the steel wire must first be heated to a completely austenite crystal structure before quenching and quenching in an isothermal water bath and unequal temperature air, and the austenite crystal structure 7-8 grain size is obtained. The purpose of steel wire isothermal water bath and unequal temperature air cooling and quenching is to obtain uniform and fine sorbite crystal structure, and then obtain higher strength, toughness and good plasticity. After the steel wire is heated at...

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Problems solved by technology

[0003] The isothermal water bath quenching unit for steel wire generally includes an upper quenching tank and a lower liquid storage tank. The quenching liquid is stored in the liquid storage tank and is circulated to the upper quenching tank. This isothermal water bath quenching unit has the following disadvantages: 1. The current upper Quenching tanks are only suitable for quenching steel wires with larger diameters, and steel wires with smaller diameters are more sensitive to temperature. The current upper quenching tanks are difficult to control the quenching time, quenching length, and cooling speed. When the quenching liquid flows in the upper quenching tank, the liquid level fluctuates relatively large, and the contact between the steel wire and the quenching liquid is not uniform enough, resulting in uneven cooling of the steel wires, resulting in uneven quality of the steel wires, and even due to the uneven cooling of the steel wires with smaller diameters. 2. In addition, the current upper quenching tank cannot produce steel wires of different quenching specifications at the same time; 3. When the steel wire is quenched in the upper quenching tank, it is generally in a relatively open state, and some baffles are used for heat preservation and The temperature control effect is not obvious. After the steel wire

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