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Heat treatment equipment and heat treatment method of metal parts

A technology of heat treatment equipment and heat treatment method, which is applied in tempering heat treatment equipment, heat treatment, and quenching fields. It can solve the problems of easy damage to the drum, low efficiency, waste of heating furnace, etc., and achieve the effect of simple lifting

Active Publication Date: 2010-07-21
GUANGZHOU CCM ELECTRICAL APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because there is only one spiral drum for preheating metal parts, the efficiency is low, and now more and more products are pursued for diversification and differentiation. When there are many types of parts that are often heat-treated and the number is small, the heating furnace of this utility model is even more wasteful.
As the parts rotate with the drum in the spiral drum, the metal parts will collide with each other, which will affect the surface quality of the parts, and the parts with high surface requirements will not meet the requirements; and the metal parts will collide with the spiral drum, affecting the surface quality of the parts. The service life of the roller, for larger parts, the roller is more likely to be damaged

Method used

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  • Heat treatment equipment and heat treatment method of metal parts
  • Heat treatment equipment and heat treatment method of metal parts
  • Heat treatment equipment and heat treatment method of metal parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 , figure 2 As shown, a heat treatment equipment for metal parts includes a feeding device, a material cylinder 1, a material cylinder 44, a material cylinder 45, a turntable 2, a turntable rotation mechanism (not shown), and a turntable limit for turning the turntable 2 to a set position. Mechanism (not shown), lifting mechanism, electromagnetic induction heating device, feeding device, feeding device.

[0037] The feeding device comprises a feed port 3, a discharge port 4 and a feed conveyor belt 5 connecting the feed port 3 and the discharge port 4, a conveyor belt driving device (not shown) and a cover 6, and the discharge port 4 is in the When the rotating disk 2 stops rotating, it is facing the inlet of one of the barrels 44 .

[0038] Material cylinder 1, material cylinder 44 and material cylinder 45 are installed on the turntable 2, and are evenly distributed along the circumference of the turntable 2. The turntable rotation mechanism is inst...

Embodiment 2

[0043] Such as image 3 , Figure 4 , Figure 5 As shown, different from Embodiment 1, the lifting platform 7 includes a lifting rod 8 installed on the lifting platform 7 and a lower supporting block 26 and an upper fixing block 27 fixed on the lifting rod 8, and the induction coil 12 is installed on the lower supporting block. 26 and the induction coil 12 is fixed between the lower support block 26 and the upper fixed block 27 by the upper fixed block 27, and the lower support block is provided with the air-avoiding hole 28 of the empty barrel; the upper fixed block seals the barrel; The fixed block is provided with a carbon and / or nitrogen injection port joint 29 and a gas port joint 30 .

[0044] The bottom of the barrel 1 is an open end. The unloading device includes a movable block 31 installed at the bottom of the barrel 1, an inverted groove 32, a drive motor 33 and an output gear 34, and the movable block 31 is provided with a rack 35 meshing with the output gear 34...

Embodiment 3

[0046] Such as Figure 6 As shown, the difference from Embodiment 1 is that there are two barrels, namely barrel 47 and barrel 48, and the lifting device relative to the barrel and the induction coil is a turntable lifting mechanism. The turntable lifting mechanism and the turntable rotation mechanism include a motor 37, a worm screw 38 coaxially installed with the motor, a worm wheel 39 engaged with the worm screw 38, and a screw 40 coaxially installed with the worm wheel 39, and the turntable 2 is installed on the screw 40. A base fixing seat 41 is also provided at the bottom of the turntable 2 . The cylinder 9 is fixed on the fixed rod 42 .

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Abstract

The invention relates to heat treatment equipment of metal parts, which comprises a heating device and charging barrels, wherein the charging barrels are installed on a rotating disk; the heating device is an electromagnetic induction heating device; the inner diameter of an induction coil is greater than the outer diameter of each charging barrel; when the induction coil is in a working state of energizing and heating, the induction coil is surrounded at the outer side of one of the charging barrels; and the inner cavity of each charging barrel for containing metal parts is a sealed space. The heat treatment method comprises the following steps: after the induction coil is lowered or the charging barrels are lifted and the corresponding charging barrel is sealed, filling inert gases, and heating to the set temperature; adding carbon and / or nitrogen, heating for the set time, and then, stopping heating; lifting the induction coil or lowering the charging barrels, rotating the rotating disk, pouring materials, quenching and cooling to complete the carburization and / or nitridation heat treatment process of the metal parts; simultaneously, rotating the charging barrels containing the metal parts to be treated by heating to the under part of the induction coil; and circularly working. The invention has the advantage of high efficiency and can realize continuous automatic production.

Description

technical field [0001] The invention relates to heat treatment equipment and a heat treatment method of metal parts, in particular to a heat treatment equipment and heat treatment method for quenching and tempering of metal parts. Background technique [0002] The quenching process is a heat treatment process in which the steel is heated to a certain temperature above AC3 or AC1 point, kept for a certain period of time, and then cooled at an appropriate speed to obtain martensite and (or) bainite structure. [0003] If the quenching heating temperature of the hypoeutectoid steel is lower than AC3, the steel has not been completely austenitized at this time, and there is some untransformed ferrite, and the ferrite remains in the quenched structure after quenching. The hardness of ferrite is low, so that the hardness after quenching cannot meet the requirements, and it will also affect other mechanical properties. If the hypoeutectoid steel is heated to a temperature much hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/42C21D1/18C21D1/74
CPCY02P10/25
Inventor 杨东佐
Owner GUANGZHOU CCM ELECTRICAL APPLIANCE
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