CN210420122U

CN210420122U - Uniform temperature vacuum ion nitriding furnace

Info

Publication number: CN210420122U
Application number: CN201921159236.4U
Authority: CN
Inventors: 林育周; 刘浩; 孔祥刚
Original assignee: Shenzhen Zhenghe Dechang Technology Co Ltd
Current assignee: Shenzhen Zhenghe Dechang Technology Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-04-28
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a uniform temperature vacuum ion nitriding furnace, which belongs to the technical field of ion nitriding furnaces and comprises a furnace body, wherein a first flange is fixedly connected with the top part of the lateral wall of the furnace body in the horizontal direction, a top cover is detachably connected with the top part of the furnace body, a second flange is fixedly connected with the bottom part of the lateral wall of the top cover, a cooling tank is arranged inside the top cover, an air inlet pipe is arranged in the vertical direction on one side of the top part of the top cover, a sealing washer is bonded at the bottom part of the top cover, a heater is arranged at the bottom part of a workpiece support to heat a workpiece, the time consumption of the nitriding process is reduced, the temperature at the bottom part of the workpiece can be improved, the condition that the nitriding effect and the nitriding quality of the workpiece are influenced due to the uneven temperature in the furnace is avoided, the sealing washer is kept complete, and the situation that the sealing effect of the furnace body is influenced due to the fact that the sealing washer is deformed by heat is avoided.

Description

Uniform temperature vacuum ion nitriding furnace

Technical Field

The utility model relates to an ion nitriding furnace technical field especially relates to a samming vacuum ion nitriding furnace.

Background

Ion nitriding is used as a process for strengthening the metal surface, and is an ion chemical heat treatment process for bombarding the surface of a part with nitrogen ions generated after nitrogen-containing gas is ionized by utilizing glow discharge phenomenon and nitriding the part to obtain a surface nitriding layer.

The ion nitriding furnace is a processing appliance in an ion nitriding process and is used for bearing a workpiece and performing ion nitriding operation, the bottom of the workpiece is heated slowly in the using process of the conventional ion nitriding furnace, the condition of uneven temperature in a furnace body is easily caused, the nitriding quality and effect of the workpiece are further influenced, and due to the fact that the temperature in the furnace is too high, a sealing gasket which has a sealing effect is easily heated to shrink, and the sealing effect in the furnace body is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a samming vacuum ion nitriding furnace aims at heating the work piece and improves nitriding efficiency and make the interior temperature of stove even, and protects seal ring's normal use not influenced by high temperature.

The utility model provides a specific technical scheme as follows:

the utility model provides a samming vacuum ion nitriding furnace, which comprises a furnace body, wherein a first flange is fixedly connected with the top part of the lateral wall of the furnace body in the horizontal direction, a top cover is detachably connected with the top part of the furnace body, a second flange is fixedly connected with the bottom part of the lateral wall of the top cover, a cooling tank is arranged inside the top cover, an air inlet pipe is arranged in the vertical direction on one side of the top part of the top cover, a sealing washer is bonded on the bottom part of the top cover, a vacuum pump is arranged in the vertical direction on the top part of the top cover, a heater is arranged inside the furnace body, a workpiece support is arranged in the horizontal direction on the top part of the heater, a power connection box is arranged on one side outside the furnace body, a negative connection seat is bonded on the lateral wall of the workpiece support, the current input end of, the cladding of furnace body lateral wall has the asbestos board, the nitrogen cylinder is installed to the outside one side of furnace body, the nitrogen cylinder top can be dismantled and be connected with gas transmission pipeline, gas transmission pipeline keeps away from nitrogen cylinder one side and is connected with the intake-tube cooperation.

Optionally, a bolt is detachably connected to a joint of the first flange and the second flange in the vertical direction, and a nut is connected to the surface of the bolt in a matched manner.

Optionally, a through hole is formed in the vertical direction of one side of the top cover top, and toughened glass is detachably connected to the horizontal direction inside the through hole.

Optionally, the vertical direction in liquid nitrogen bottle top can be dismantled and is connected with the valve, the liquid nitrogen bottle passes through the valve and is connected with gas transmission pipeline.

Optionally, a water inlet pipe is arranged in the horizontal direction of one side of the cooling tank, and a water outlet pipe is arranged in the horizontal direction of the other side of the cooling tank.

The utility model has the advantages as follows:

the embodiment of the utility model provides a samming vacuum ion nitriding furnace, it replaces current mode of installing at the furnace body top through the anodal connection terminal of the vertical installation of furnace body inside wall, install the heater in the bottom of work piece support, can heat the work piece, shorten the consuming time of nitriding process, and can improve the temperature of work piece bottom, the condition that the furnace temperature all leads to influencing work piece nitriding effect and quality has been avoided, the inside cooling bath of having seted up of top cap, through pouring into the cooling water into, can reduce being heated of the seal ring that the top cap bottom bonds when carrying out the nitriding process, it keeps intact to make it, avoid leading to influencing the condition of furnace body sealing effect because seal ring is heated and is out of shape.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a uniform temperature vacuum ion nitriding furnace according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the top cover of the uniform temperature vacuum ion nitriding furnace according to the embodiment of the present invention;

FIG. 3 is a schematic structural view of the top of the workpiece support of the uniform temperature vacuum ion nitriding furnace according to the embodiment of the present invention.

In the figure: 1. a furnace body; 101. a first flange; 2. a top cover; 201. a second flange; 202. a cooling tank; 203. a water inlet pipe; 204. a drain pipe; 205. a through hole; 206. tempering the glass; 207. an air inlet pipe; 3. a sealing gasket; 4. a vacuum pump; 5. a bolt; 501. a nut; 6. a heater; 7. a workpiece support; 8. connecting a power box; 801. a negative electrode wire holder; 802. a positive electrode terminal base; 9. an asbestos sheet; 10. a nitrogen gas cylinder; 1001. a gas pipeline; 1002. and (4) a valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An isothermal vacuum ion nitriding furnace according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a uniform temperature vacuum ion nitriding furnace, which includes a furnace body 1, wherein a first flange 101 is fixedly connected to the top of the outer sidewall of the furnace body 1 in the horizontal direction, a top cover 2 is detachably connected to the top of the furnace body 1, a second flange 201 is fixedly connected to the bottom of the outer sidewall of the top cover 2, a cooling tank 202 is disposed inside the top cover 2, an air inlet pipe 207 is disposed on one side of the top cover 2 in the vertical direction, a sealing gasket 3 is bonded to the bottom of the top cover 2, a vacuum pump 4 is disposed on the top of the top cover 2 in the vertical direction, a heater 6 is disposed inside the furnace body 1, a workpiece support 7 is disposed on the top of the heater 6 in the horizontal direction, an electric connection box 8 is disposed on one side of the outside of the furnace body 1, a negative, the vertical direction of 1 inside wall of furnace body bonds and has anodal connection terminal 802, anodal connection terminal 802 current input end is connected with the 8 current output end electricity of power connection box, the cladding of 1 outside wall of furnace body has asbestos board 9, nitrogen cylinder 10 is installed to 1 outside one side of furnace body, nitrogen cylinder 10 top can be dismantled and be connected with gas transmission pipeline 1001, gas transmission pipeline 1001 keeps away from nitrogen cylinder 10 one side and is connected with intake pipe 207 cooperation.

Illustratively, the electric box 8 is arranged outside the furnace body 1 and can be connected with an external power supply and supply power to the positive electrode wire holder 802 and the negative electrode wire holder 801 inside the furnace body 1, the positive electrode wire holder 802 vertically arranged on the inner side wall of the furnace body 1 replaces the existing mode of being arranged at the top inside the furnace body 1, the heater 6 is arranged at the bottom of the workpiece support 7 and can heat the workpiece, the time consumption of the nitriding process is shortened, the temperature of the bottom of the workpiece can be improved, the condition that the nitriding effect and the quality of the workpiece are influenced due to the uneven temperature in the furnace is avoided, the cooling tank 202 is arranged inside the top cover 2, the heating of the sealing washer 3 bonded at the bottom of the top cover 2 can be reduced by injecting cooling water during the nitriding process, the sealing washer 3 is kept complete, the condition that the sealing effect of the furnace body 1 is influenced due to the thermal deformation of the sealing washer 3 is avoided, the nitrogen, the asbestos plate 9 coated on the outer wall of the furnace body 1 has good heat insulation performance, and can reduce the loss of heat.

Referring to fig. 1 and 2, a bolt 5 is detachably connected to a joint of the first flange 101 and the second flange 201 in a vertical direction, and a nut 501 is fittingly connected to a surface of the bolt 5.

Illustratively, the positions of the first flange 101 and the second flange 201 can be fixed through the matching of the bolts 5 and the nuts 501, so as to achieve the purpose of fastening the connection between the top cover 2 and the furnace body 1.

Referring to fig. 1 and 2, a through hole 205 is formed in one side of the top cover 2 in the vertical direction, and tempered glass 206 is detachably connected to the inside of the through hole 205 in the horizontal direction.

In the example, through the through hole 205 and the toughened glass 206 formed in the top of the top cover 2, the inside of the furnace body 1 can be observed conveniently without affecting the normal use of the furnace body 1.

Referring to fig. 1 and 2, a valve 1002 is detachably connected to the top of the liquid nitrogen bottle 10 in the vertical direction, and the liquid nitrogen bottle 10 is connected to a gas pipeline 1001 through the valve 1002.

Illustratively, the opening and closing of the liquid nitrogen bottle 10, and thus the circulation of the nitrogen gas, is conveniently controlled by a valve 1002 mounted on the top of the liquid nitrogen bottle 10.

Referring to fig. 1 and 2, a water inlet pipe 203 is horizontally disposed on one side of the cooling tank 202, and a water outlet pipe 204 is horizontally disposed on the other side of the cooling tank 202.

For example, cooling water required for cooling may be injected into the cooling tank 202 through the water inlet pipe 203, and the cooled cooling water may be discharged from the drain pipe 204 into the cooling tank 202.

When in use, workpieces needing nitriding treatment are orderly stacked on the top of a workpiece support 7 in a furnace body 1, a top cover 2 is covered on the top of the furnace body 1, a second flange 201 fixedly connected with the bottom of the top cover 2 is aligned with a first flange 101 on the top of the furnace body 1, bolts 5 sequentially penetrate through the second flange 201 and the first flange 101 in the vertical direction, nuts 501 are screwed into the bottoms of the bolts 5 to be screwed, so that the connection between the first flange 101 and the second flange 201 can be fixed, the furnace body 1 and the top cover 2 are stably connected, a sealing washer 3 adhered to the bottom of the top cover 2 can improve the connection sealing property between the top cover 2 and the furnace body 1, a power connection box 8 is arranged outside the furnace body 1 and can be externally connected with a power supply and supply power to a positive electrode wire holder 802, a negative electrode wire holder 801 and a heater 6, the heater 6 is of a JRD type produced by Wenzhou Standby electric appliances Limited, the internal structure is not illustrated, the electric energy can be converted into heat energy and is conducted to the bottom of the workpiece through the workpiece support 7 to heat the workpiece, the time required by nitriding is shortened, the workpiece is heated uniformly, the condition that the nitriding effect is influenced due to uneven heating of the bottom of the workpiece in the nitriding process is avoided, the vacuum pump 4 at the top of the top cover 2 is started, the vacuum pump 4 is a 2XZ-4 type produced by Shanghai Hao electromechanical equipment Limited company, the internal structure is not illustrated, an external power supply starts to work, the air in the furnace body 1 can be sucked to enable the interior of the furnace body 1 to be in a vacuum environment, the valve 1002 at the top of the nitrogen bottle 10 is started to enable the nitrogen to flow along the gas transmission pipeline 1001 and be discharged into the interior of the furnace body 1 through the gas inlet pipe 207, the negative electrode wire holder 801 on the surface of the workpiece support 7 and the positive electrode wire holder 802 on the inner wall, in the nitriding process, cooling water is injected into a cooling tank 202 arranged inside a top cover 2 through a water inlet pipe 203, the low temperature of the cooling water can be conducted to a sealing washer 3 bonded at the bottom of the cooling tank through the top cover 2, the situation that the sealing washer 3 is heated and deformed due to overhigh temperature and the sealing effect is further influenced is avoided, the connection tightness between a furnace body 1 and the top cover 2 is improved, the cooling water after cooling can be discharged from a drain pipe 204 arranged at one side of the cooling tank 202, the cooling water inside the cooling tank 202 is continuously circulated, a through hole 205 is arranged at the top of the top cover 2, toughened glass 206 is arranged inside the through hole 205, an operator can conveniently observe the workpiece nitriding condition inside the furnace body 1 on the premise of not influencing the normal use of the nitriding furnace, a asbestos plate 9 is coated on the outer side wall of the furnace body 1, the asbestos plate 9 has good heat insulation performance, and the heat, but also can prevent the situation of scalding caused by mistakenly contacting the furnace body 1.

The embodiment of the utility model provides a samming vacuum ion nitriding furnace, it replaces current mode of installing at top in furnace body 1 through the anodal connection terminal 802 of the vertical installation of 1 inside wall of furnace body, install heater 6 in the bottom of work piece support 7, can heat the work piece, shorten the consuming time of nitriding process, and can improve the temperature of work piece bottom, avoided the interior temperature of stove all to lead to influencing the condition of work piece nitriding effect and quality, 2 inside cooling bath 202 of having seted up of top cap, through pouring into the cooling water into, can reduce being heated of seal ring 3 that 2 bottoms of top cap bonded when carrying out the nitriding process, it keeps intact to make it, avoid leading to influencing the condition of 1 sealed effect of furnace body because seal ring 3 is heated to warp.

It should be noted that, the utility model relates to a samming vacuum ion nitriding furnace, including furnace body 1, first flange 101, top cap 2, second flange 201, cooling bath 202, inlet tube 203, drain pipe 204, through-hole 205, toughened glass 206, intake pipe 207, seal ring 3, vacuum pump 4, bolt 5, nut 501, heater 6, work piece support 7, electronic box 8, negative pole connection terminal 801, positive pole connection terminal 802, asbestos board 9, nitrogen gas bottle 10, gas transmission pipeline 1001, valve 1002, the part is the part that general standard or technical staff in the field know, its structure and principle all can learn through the technical manual or learn through conventional experimental method for this technical staff.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A uniform temperature vacuum ion nitriding furnace comprises a furnace body and is characterized in that a first flange is fixedly connected with the top of the outer side wall of the furnace body in the horizontal direction, a top cover is detachably connected with the top of the furnace body, a second flange is fixedly connected with the bottom of the outer side wall of the top cover, a cooling tank is arranged inside the top cover, an air inlet pipe is arranged in the vertical direction on one side of the top cover, a sealing washer is bonded on the bottom of the top cover, a vacuum pump is mounted in the vertical direction on the top of the top cover, a heater is mounted inside the furnace body, a workpiece support is mounted in the horizontal direction on the top of the heater, an electric connection box is mounted on one side outside the furnace body, a negative connection base is bonded on the outer side wall of the workpiece support, the current input end of the negative connection base is electrically, the cladding of furnace body lateral wall has the asbestos board, the nitrogen cylinder is installed to the outside one side of furnace body, the nitrogen cylinder top can be dismantled and be connected with gas transmission pipeline, gas transmission pipeline keeps away from nitrogen cylinder one side and is connected with the intake-tube cooperation.

2. The temperature-equalizing vacuum ion nitriding furnace as recited in claim 1, wherein a bolt is detachably connected to a joint of the first flange and the second flange in a vertical direction, and a nut is fittingly connected to a surface of the bolt.

3. The uniform temperature vacuum ion nitriding furnace as claimed in claim 1, wherein a through hole is formed in one side of the top cover in the vertical direction, and toughened glass is detachably connected to the inside of the through hole in the horizontal direction.

4. The temperature-equalizing vacuum ion nitriding furnace as recited in claim 1, wherein a water inlet pipe is horizontally arranged at one side of the cooling tank, and a water outlet pipe is horizontally arranged at the other side of the cooling tank.