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Beat type rapid cooling tunnel furnace capable of being controlled regionally and independently

A rapid cooling and region-independent technology, applied in the field of tunnel furnaces, can solve problems such as product quality impact, and achieve the effect of improving precise monitoring and improving workpiece quality

Active Publication Date: 2020-12-01
JIAXING HEYI IND RESISTANCE FURNACE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the controllable atmosphere heat treatment, the tunnel furnace is often used, and the workpiece is conveyed by the conveying device in the tunnel furnace, and the workpiece is heated and cooled. The workpiece is transferred between the two positions of heating and cooling by conveying However, the transmission speed of the conveying device is generally in a constant state, and there must be a transition zone with a certain distance between the heating position and the cooling position, then the conveying device will carry the product between the heating position and the cooling position. The transition zone is transported for a period of time, so that the product is neither in the required heating temperature range nor in the required cooling temperature range, which will affect the quality of the product

Method used

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  • Beat type rapid cooling tunnel furnace capable of being controlled regionally and independently
  • Beat type rapid cooling tunnel furnace capable of being controlled regionally and independently
  • Beat type rapid cooling tunnel furnace capable of being controlled regionally and independently

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] refer to figure 1 The zone-independently controllable rhythmic rapid cooling tunnel furnace includes a furnace body 1 formed with an inlet channel 11 and an outlet channel 12 at the end, a conveying device 2 passing through the inlet channel 11 and the outlet channel 12, and the furnace body 1 includes high-temperature furnaces arranged in sequence. The muffle section 3 and the cooling section 4, the conveying device 2 passes the workpiece through the high temperature muffle section 3 and the cooling section 4 in sequence, the workpiece is heated in the high temperature muffle section 3, and the workpiece is cooled in the cooling section 4. The conveying device 2 includes a conveying member 21 for conveying the workpiece and passing through the inlet passage 11 and the outlet passage 12, and a driving mechanism 22 that drives the conveying member 21 to move in a rhythmic manner. The workpiece is placed on the surface of the conveying member 21 in turn, and the high-tempe...

Embodiment 2

[0044] refer to figure 2 , regionally independent controllable rhythmic rapid cooling tunnel furnace, the difference from Embodiment 1 is that the conveying element 21 is located at the entrance channel 11 and is wound by the transition wheel 10 and conveyed to the interior of the furnace body 1, and the conveying element 21 is transported from the exit The passage 12 is sent out, and the conveying part 21 is located on the side of the exit passage 12 to realize the rhythmic movement by the driving mechanism 22. The driving mechanism 22 includes splints 223 located on the upper and lower sides of the conveying part 21, and is fixedly connected to the external support 13. The splint driver 224, the splint driver 224 is an air cylinder or oil cylinder, the output shaft of the splint driver 224 is connected to the splint 223, and the two splints 223 are used to clamp the conveying member 21, and are arranged outside the furnace body 1 Propel driver 225 is arranged, and propel dr...

Embodiment 3

[0046] refer to figure 2 and image 3 As shown, the regionally independent controllable rhythmic rapid cooling tunnel furnace is different from Embodiment 1 in that the bottom of the heat shield 6 is integrally formed with an insert 14, and the surface of the conveying member 21 is provided along its conveying direction. There are a plurality of slots for inserting the plug blocks 14 , and the heat shield 6 can be fixed by bolts between the conveying member 21 and the plug blocks 14 . In order to accurately align the heating unit 7 and the workpiece, the mounting piece 81 is slidably connected to the inner wall of the high-temperature muffle section 3 along the length direction of the high-temperature muffle section 3, and the mounting piece 81 can also be fixed by bolts, so that the insulation can be changed. The position of the thermal insulation layer 8 in the high-temperature muffle section 3 makes the position of the thermal insulation layer 8 correspond to the heat shi...

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PUM

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Abstract

The invention relates to a beat type rapid cooling tunnel furnace capable of being controlled regionally and independently. The beat type rapid cooling tunnel furnace comprises a furnace body and a conveying device, an inlet channel and an outlet channel are formed at the head and the tail of the furnace body, and the conveying device penetrates through the inlet channel and the outlet channel ofthe furnace body; the furnace body comprises a high-temperature muffle section and a cooling section which are arranged in sequence; the conveying device comprises a conveying piece penetrating through the inlet channel and the outlet channel, and a driving mechanism for driving the conveying piece to move in a beat mode; and the distance between an outlet of the high-temperature muffle section and the cooling section is the same as the distance between adjacent workpieces placed on the surface of the conveying piece, and the distance that the driving mechanism drives the conveying piece to move each time is the same as the distance between the outlet of the high-temperature muffle section and the cooling section. The beat type rapid cooling tunnel furnace capable of being controlled regionally and independently has the effect of improving the quality of the workpieces.

Description

technical field [0001] The present application relates to the field of tunnel furnaces, in particular to a zone-independently controllable beat-type rapid cooling tunnel furnace. Background technique [0002] One of the key development directions of heat treatment production technology is controlled atmosphere heat treatment, which uses controlled atmosphere to realize non-oxidative heat treatment. In small variety and mass production, especially the bright quenching, annealing, carburizing quenching, carbonitriding quenching and gas carbonitriding of carbon steel and general alloy structural steel parts still use controlled atmosphere as the main means. [0003] In the controllable atmosphere heat treatment, the tunnel furnace is often used, and the workpiece is conveyed by the conveying device in the tunnel furnace, and the workpiece is heated and cooled. The workpiece is transferred between the two positions of heating and cooling by conveying However, the transmission s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B9/24F27B9/30F27B9/36F27B9/40F27D15/02
CPCF27B9/243F27B9/30F27B9/36F27B9/40F27D15/02F27B2009/3638Y02P40/57
Inventor 杨学礼杨晓东
Owner JIAXING HEYI IND RESISTANCE FURNACE CO LTD