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Austempering multi-purpose furnace production line using oil or oil-atmosphere as quenching medium

A technology of isothermal quenching and using oil, which is applied in the direction of quenching agent, quenching device, furnace, etc., can solve the problems of slow cooling speed, environmental protection, and difficult handling of salt residue, etc., and achieve the effect of stable transfer process

Active Publication Date: 2022-01-28
王宁 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there will be a "fatal problem" for metal workpieces, namely 1. Slow cooling rate
2. The nitrate medium or salt solution is easy to remain on the surface of the metal workpiece, especially in the gully-like structure. It is inconvenient to clean and it is easy to cause corrosion on the metal workpiece
3. Not environmentally friendly: salt bath steam pollutes the environment, and salt residue is difficult to deal with

Method used

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  • Austempering multi-purpose furnace production line using oil or oil-atmosphere as quenching medium
  • Austempering multi-purpose furnace production line using oil or oil-atmosphere as quenching medium
  • Austempering multi-purpose furnace production line using oil or oil-atmosphere as quenching medium

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The SFPID multi-purpose furnace is an internal transfer equipment, equipped with a circulating fan, an alloy radiant tube electric heating system, a closed front room, a quenching oil tank and an isothermal room. The equipment has the function of carbon potential control and is suitable for carburizing, carbonitriding, quenching, annealing, isothermal and other heat treatments that require a controllable atmosphere during heating and quenching. The equipment is equipped with a set of CP controller for controlling the atmosphere in the furnace, and provides a set of PLC and operation man-machine interface.

Embodiment 2

[0042] SFPID multi-purpose furnace is equipped with a set of PLC control program for automatic control. The temperature of the heating furnace is controlled at an appropriate level through the program controller and S.C.R. power regulator. The atmosphere in the equipment is detected by an oxygen probe, and the carbon potential in the furnace is controlled by controlling the propane enrichment system.

[0043]The control program can complete important parameters and component status on the dual-channel controller, and display them on the display, including process time, temperature, CP value, methanol infusion, etc., and record these important parameters on the recorder.

Embodiment 3

[0045] The SFPID multi-purpose furnace is equipped with a transfer robot, which is used to transport workpieces. It consists of a push-pull chain, a push-pull hook, an electric drive mechanism and a manual drive mechanism, and a platform for the operator to stand on. Push zippers have rollers on both sides that run on rails. The push-pull chain only enters the furnace when transporting workpieces, and is hidden under the workbench of the charging cart when it is not working. The drive unit is driven by a motor with a brake. There is a safety pin between the drive unit and the motor as overload protection. The transfer robot is mounted on flanged wheels, driven by a motor reducer with brakes, and runs on a 60-pound track. The robot can move to the attached equipment, namely washing machine, tempering furnace, loading and unloading table.

[0046] The transfer robot can be controlled not only through the touch screen operation control system in the operating room, but also th...

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Abstract

The invention discloses an austempering multi-purpose furnace production line using oil or oil-atmosphere as a quenching medium, comprising: a heating chamber for heating the workpiece to austenite temperature, an isothermal chamber for isothermal transformation of the workpiece, and a cooling chamber for cooling the workpiece to The oil pool at the Bs point temperature, and the multi-purpose front room; the front room includes the front furnace door for entering and exiting the workpiece, the transfer door connected with the isothermal room, and the middle door connected with the heating room; the heating room uses a radiant tube as a heater, and There is also a stirring circulation fan; a fire curtain combustion device is installed on the front furnace door; a lift is installed in the front room to vertically drop into the oil pool; a feeding system for moving workpieces according to a predetermined route is set between the heating room, the front room, and the other greenhouses. track, the elevator rises and docks with the feeding track to transfer workpieces. This equipment has a carbon potential control system and is suitable for carburizing, carbonitriding, quenching, annealing, isothermal and other heat treatments that require a controllable atmosphere during heating and quenching.

Description

technical field [0001] The invention relates to the field of automatic oil or oil-atmosphere isothermal quenching equipment, in particular to an isothermal quenching multipurpose furnace production line using oil or oil-atmosphere as an isothermal quenching medium under controllable atmosphere conditions. Background technique [0002] Austempering heat treatment, as a stable process to control the uniformity of material structure and performance, has been attracting attention. Especially in order to improve the effect of austempering, the industry has carried out systematic research on the quenching process and the design of salt baths, and even improved the quenching medium. Satisfy the quenching effect. [0003] For a long time, to achieve the quenching effect of heat treatment, parts and high-temperature metal materials are immersed in the salt bath through the transmission system, and after the quenching is completed, they are sent out of the salt bath through the transm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/64C21D1/74C21D1/20C21D1/58C21D1/613C21D9/00
CPCC21D1/64C21D1/74C21D1/20C21D1/58C21D1/613C21D9/0018C21D9/0062
Inventor 王宁朱玉林邵红红
Owner 王宁
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