CN218034355U - Partitioned vacuum furnace for steel bonded hard alloy - Google Patents
Partitioned vacuum furnace for steel bonded hard alloy Download PDFInfo
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- CN218034355U CN218034355U CN202123067932.2U CN202123067932U CN218034355U CN 218034355 U CN218034355 U CN 218034355U CN 202123067932 U CN202123067932 U CN 202123067932U CN 218034355 U CN218034355 U CN 218034355U
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Abstract
The utility model provides a steel bond is subregion formula vacuum furnace for carbide, has convenient operation, stable performance characteristics. The method can also realize the operation of carrying out four groups of hard alloy with different variables by one-time vacuum pumping, the hard alloy is more convenient, and the method reduces the occupied area, saves the purchase cost, and reduces the errors caused by factors such as environment, different devices and the like. The utility model aims to solve the technical problem of providing a partitioned vacuum furnace for steel bonded hard alloy, which comprises a partitioned vacuum furnace for steel bonded hard alloy, wherein the main body comprises a heating device, a temperature measuring element and a ventilation device; the main body heating device comprises a furnace wall arranged in the main body, a plurality of groups of furnace chambers are arranged in the furnace wall, and heating cages are arranged in the furnace chambers.
Description
Technical Field
The utility model relates to a heat treatment device, in particular to a partitioned vacuum furnace for steel bonded hard alloy.
Background
As a common heat treatment device, a vacuum heat treatment furnace is frequently used, and different factors are required to be controlled to be repeatedly sintered for use in the process of steel bonded hard alloy. The conventional vacuum heat treatment furnace has a slow heating speed, only one group of steel bonded hard alloy can be carried out each time, and when the factors of the steel bonded hard alloy needing to be controlled are excessive, a single vacuum heat treatment furnace is usually used for repeatedly sintering, or a plurality of vacuum heat treatment furnaces are purchased for simultaneously sintering.
However, the two methods require vacuum pumping during each sintering, which not only is complicated to operate, but also affects the steel bonded cemented carbide result because the control variables are inaccurate in the steel bonded cemented carbide process due to environmental factors or equipment parameters.
Disclosure of Invention
The utility model discloses to the technical problem that will solve, provide the steel tie carbide that can realize once the evacuation and carry out the different variable of four groups and operate with subregion formula vacuum furnace for the steel tie carbide.
In order to realize the above problem, the utility model adopts the technical scheme that:
the utility model relates to a partitioned vacuum furnace for steel bond hard alloy, which comprises a vacuum furnace body, a plurality of groups of furnace chambers arranged in the vacuum furnace, a furnace wall comprising an outermost shell and an inner layer, a plurality of groups of furnace chambers arranged in the furnace wall, wherein each furnace chamber is respectively provided with a heat preservation layer, a heating element and a furnace cover, all furnace chambers are respectively provided with an independent exhaust valve and an independent air inlet valve, the exhaust valve is communicated with a vacuum pump through an exhaust pipeline, each furnace chamber is isolated from the outside except the exhaust valve and the air inlet valve,
preferably, the heating elements comprise two groups, namely a first heating element and a second heating element, the first heating element and the second heating element are deeply arranged in the heat preservation layer of the furnace chamber, and a temperature measuring element is further arranged in the furnace chamber penetrating through the furnace wall.
Preferably, a heating cage is arranged in the furnace chamber, the heating cage is a graphite heating cage, the heating element directly heats the heating cage, and the distance between the temperature measuring element and the heating cage is cm.
As preferred, the stove adds thermal cage and includes graphite bracing piece, graphite rod and graphite cake, and the graphite cake is in the bottom, and the graphite rod divides the both sides of setting at the graphite cake, and the top of graphite rod is connected to the graphite bracing piece. The graphite support rods are respectively arranged at two ends of the graphite plate and have a surrounding cage-shaped structure.
Preferably, the graphite support rods protrude out of two sides of the graphite plate, T-shaped grooves are formed in two sides of the upper portion in the furnace chamber, the heating cage is embedded into the T-shaped grooves at two ends of the graphite support rods in the furnace chamber, and the whole heating cage is located in the center of the furnace chamber.
Preferably, the exhaust pipe is arranged at the rear part of the vacuum furnace body and extends into the vacuum furnace body to be communicated with the air inlet valve, and the vacuum pump is arranged outside the vacuum furnace body and used for extracting air in the furnace cavity.
Preferably, the heat-insulating layer is provided with a furnace cover matched with the vacuum furnace body on the front side surface of the vacuum furnace body, a sealing ring is arranged between the furnace cover and the furnace wall, and fastening screws are arranged on the periphery of the top of the furnace cover and fixedly connected with the furnace wall.
Preferably, the furnace cavity is four groups which are arranged in the main body in a rectangular mode, the heating elements are arranged on the side wall of the vacuum furnace body and deeply enter the furnace cavity, the first heating element and the second heating element are arranged up and down, and the temperature measuring element is arranged between the two heating elements.
Preferably, a vacuum gauge is disposed at the air inlet valve at the bottom of the furnace chamber.
The utility model has the advantages that:
the utility model discloses be equipped with four furnace chambeies, every furnace chamber possess independent heat preservation, heating element and temperature element, and four furnace chambers are equipped with independent admission valve and discharge valve to use a vacuum pump can accomplish the evacuation operation through the pipe connection, can carry out the different thermal treatment steel knot hard alloy of four groups in the evacuation of once, the cost that significantly reduces, the error that factors such as reduction environment caused makes thermal treatment steel knot hard alloy more convenient.
The four furnace chambers can heat four different metals at the same time, and the test efficiency in unit time is improved by times.
Drawings
FIG. 1 is an overall sectional view of a partitioned vacuum furnace for steel bonded cemented carbide;
FIG. 2 is a top view of a sectional vacuum furnace for steel bonded cemented carbide;
FIG. 3 is a rear view of a sectional vacuum furnace for steel bonded cemented carbide;
FIG. 4 is a three-dimensional view of a graphite heating cage in a zoned vacuum furnace for steel bonded cemented carbide.
Reference numerals:
1. the device comprises a shell, 2, a furnace wall, 3, a heat preservation layer, 4, a first heating element, 5, a temperature measuring element, 6, a second heating element, 7, a furnace chamber, 8, a heating cage, 9, a T-shaped groove, 10, an exhaust valve, 11, an exhaust pipe, 12, a vacuum pump, 13, an air inlet valve, 14, a vacuum gauge, 15, a fastening screw, 16, a furnace cover, 17, a sealing ring, 18, a graphite support rod, 19, a graphite rod, 20 and a graphite plate.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the invention.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the designated position or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Fig. 1 to 4 show an embodiment of the present invention.
The partitioned vacuum furnace for the steel bond hard alloy shown in figure 1 comprises a vacuum furnace body, a plurality of groups of furnace chambers 7 arranged in the vacuum furnace body, and a furnace wall 2 comprising an outermost shell and an inner layer, wherein the furnace chambers 7 are arranged in the furnace wall 2, each furnace chamber is respectively provided with a heat insulation layer, a heating element and a furnace cover, the furnace chambers are mutually separated by a heat insulation layer, different heat treatments can be carried out on different steel bond hard alloy products in a partitioned manner,
in order to realize the heating of the material in the furnace cavity, the heating elements comprise two groups, namely a first heating element 4 and a second heating element 6, the first heating element 4 and the second heating element 6 extend into the heat preservation layer of the furnace cavity, and the first heating element 4 and the second heating element 6 directly heat the heating cage. In order to control the heating temperature and time of the first heating element 4 and the second heating element 6, a temperature measuring element 5 is arranged in the furnace cavity penetrating through the furnace wall, the temperature measuring element 5 detects the heating temperature at any time and feeds the temperature back to a control system, and the control system manually or automatically controls the heating time and the opening and closing time of the first heating element 4 and the second heating element 6. The two heating elements can be heated simultaneously or separately.
As shown in figure 1, the furnace chamber 7 is four groups which are arranged in a rectangular shape in the main body, the heating elements are arranged on the side wall of the vacuum furnace body and deeply enter the furnace chamber, the first heating element 4 and the second heating element 6 are arranged up and down, and the temperature measuring element 5 is arranged between the two heating elements. The heat preservation layer 3 is provided with a furnace cover 16 matched with the vacuum furnace body on the front side surface of the vacuum furnace body, a sealing ring 17 is arranged between the furnace cover 16 and the furnace wall 2, and fastening screws 15 are arranged around the top of the furnace cover 16 and fixedly connected with the furnace wall 2, so that good air tightness in the furnace chamber is ensured.
Four different furnace chambers can be respectively provided with different heat treatment processes to carry out four groups of heat treatment of the steel bonded hard alloy with different temperature parameters.
And all the steps are completed until the heat treatment is completed, and the sample is taken out after the cooling is completed, so that the heat treatment purpose of a plurality of different products is completed.
The heating cage 8 arranged in the furnace chamber 7 is a graphite heating cage, the heating element directly heats the heating cage 8, and the distance between the temperature measuring element 5 and the heating cage 8 is 2cm.
The heating cage 8 comprises graphite supporting rods 18, graphite rods 19 and graphite plates 20, the graphite plates 20 are located at the bottom, the graphite rods are arranged on two sides of the graphite plates 20 in a split mode, and the graphite supporting rods 18 are connected with the tops of the graphite rods. The graphite support rods 18 are respectively arranged at two ends of the graphite plate 20, and the graphite support rods 18 protrude out of two sides of the graphite plate 20 to form a fence-shaped cage structure. The steel bond hard alloy to be heated is put into the heating cage 8 for heating.
The heating cage is arranged in the furnace chamber in a suspended mode, specifically, as shown in figure 1, T-shaped grooves 9 are formed in two sides of the upper portion in the furnace chamber 7, the heating cage 8 is embedded into the T-shaped grooves 9 in two ends of a graphite supporting rod 18 in the furnace chamber, the whole heating cage 8 is located in the center of the furnace chamber 7, and the graphite heating cage can be conveniently taken out, cleaned and replaced.
As shown in fig. 3, all the furnace chambers are respectively provided with an exhaust valve 10 and an intake valve 13, the exhaust valve 10 is communicated with and communicated with a vacuum pump 12 through an exhaust pipeline 11, and each furnace chamber is isolated from the outside except the exhaust valve 10 and the intake valve 13. The exhaust pipe 11 is arranged at the rear part of the vacuum furnace body and extends into the vacuum furnace body to be communicated with the air inlet valve 13, and the vacuum pump 12 is arranged outside the vacuum furnace body and used for extracting air in the furnace cavity. A vacuum gauge 14 is provided at the bottom of the chamber 7 at the air inlet valve 13. The vacuum pump 12 can simultaneously vacuumize a plurality of furnace chambers
The furnace wall 2 is made of high-aluminum heat-insulating refractory bricks and high-aluminum heat-insulating pouring materials, and has good heat-insulating effect and sealing effect.
The utility model discloses when carrying out the thermal treatment operation, open admission valve 13 earlier, observe the interior external pressure of 14 stoves of vacuum gauge, screw off fastening screw 15 when furnace chamber internal pressure is balanced with the external world, open bell 16, place four group's samples respectively in four graphite heating cage 8 bottoms, close bell 16, screw up fastening screw 15, open discharge valve 10, open vacuum pump 12 and carry out the evacuation. Observing that the vacuum gauge 14 reaches a proper vacuum degree, the first heating element 4 and the second heating element 6 are heated, controlling the temperature by using the thermocouples 5, setting different heat treatment processes for the four furnace chambers respectively until the heat treatment is finished, and taking out the sample after the cooling is finished.
The utility model provides a traditional vacuum sintering stove can only carry out the inefficiency of a set of steel knot carbide at every turn, must evacuation many times and sintering repeatedly when traditional vacuum sintering stove carries out multiunit steel knot carbide, complex operation. The utility model discloses a be equipped with four furnace chambers 7, every furnace chamber possess independent heat preservation 3, heating element 4 and temperature element 5, and four furnace chambers are equipped with independent admission valve 13 and discharge valve 10 to use a vacuum pump to accomplish the evacuation operation through the pipe connection, can carry out the different heat treatment accretion of steel alloy of four groups in evacuation once, the cost that significantly reduces, the error that factors such as reduction environment caused, moreover the utility model discloses graphite heating cage 8 in the furnace chamber 7 uses T type groove 9 to place, can conveniently heat the cage and take out the clearance, and heat treatment accretion of steel alloy is more convenient.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. Steel bond is zoned formula vacuum furnace for carbide, its characterized in that, including the vacuum furnace body, built-in multiunit furnace chamber (7) of vacuum furnace, furnace wall (2) including outermost shell and inlayer set up in furnace wall (2) multiunit furnace chamber (7), every furnace chamber is equipped with heat preservation, heating element and bell respectively, and all furnace chambers set up independent discharge valve (10) and admission valve (13) respectively, and discharge valve (10) lead to vacuum pump (12) through blast pipe UNICOM is parallelly connected, and every furnace chamber is isolated each other with the outside except discharge valve (10) and admission valve (13).
2. The segmented vacuum furnace for the steel bonded hard alloy according to claim 1, wherein the heating elements comprise two groups, namely a first heating element (4) and a second heating element (6), the first heating element (4) and the second heating element (6) extend into a heat preservation layer of the furnace chamber, and a temperature measuring element (5) penetrates through the furnace wall and extends into the furnace chamber.
3. The zoned vacuum furnace for the steel bonded hard alloy according to claim 2, wherein a heating cage (8) is arranged in the furnace chamber (7), the heating cage (8) is a graphite heating cage, the heating element directly heats the heating cage (8), and the distance between the temperature measuring element (5) and the heating cage (8) is 2cm.
4. The zoned vacuum furnace for the steel bonded hard alloy according to claim 3, wherein the heating cage (8) comprises graphite support rods (18), graphite rods (19) and graphite plates (20), the graphite plates (20) are arranged at the bottom, the graphite rods are arranged at two sides of the graphite plates (20) in rows, the graphite support rods (18) are connected with the top of the graphite rods, and the graphite support rods (18) are arranged at two ends of the graphite plates (20) in rows to form a cage-shaped structure.
5. The segmented vacuum furnace for the steel bonded hard alloy as claimed in claim 4, wherein the graphite support rods (18) protrude out of two sides of the graphite plate (20), T-shaped grooves (9) are formed in two sides of the upper portion in the furnace chamber (7), the heating cage (8) is embedded into the T-shaped grooves (9) in two ends of the graphite support rods (18) in the furnace chamber, and the whole heating cage (8) is located in the central portion of the furnace chamber (7).
6. The zoned vacuum furnace for the steel bonded hard alloy according to claim 1, wherein the exhaust pipe (11) is located at the rear part of the vacuum furnace body and extends into the vacuum furnace body to be communicated with the air inlet valve (13), and the vacuum pump (12) is located outside the vacuum furnace body and is used for extracting air in the furnace cavity.
7. The partitioned vacuum furnace for the steel bonded hard alloy according to claim 2, wherein the heat-insulating layer (3) is provided with a furnace cover (16) matched with the heat-insulating layer on the front side surface of the furnace body of the vacuum furnace, a sealing ring (17) is arranged between the furnace cover (16) and the furnace wall (2), and fastening screws (15) are arranged on the periphery of the top of the furnace cover (16) and fixedly connected with the furnace wall (2).
8. The zoned vacuum furnace for the steel bonded hard alloy according to claim 7, wherein the furnace chambers (7) are four groups which are arranged in a rectangular shape in the main body, the heating elements are arranged in the side wall of the furnace body of the vacuum furnace and deeply enter the furnace chambers, the first heating element (4) and the second heating element (6) are arranged up and down, and the temperature measuring element (5) is arranged between the two heating elements.
9. The segmented vacuum furnace for the steel bonded hard alloy according to claim 1, wherein a vacuum gauge (14) is arranged at an air inlet valve (13) at the bottom of the furnace chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123067932.2U CN218034355U (en) | 2021-12-08 | 2021-12-08 | Partitioned vacuum furnace for steel bonded hard alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123067932.2U CN218034355U (en) | 2021-12-08 | 2021-12-08 | Partitioned vacuum furnace for steel bonded hard alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218034355U true CN218034355U (en) | 2022-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123067932.2U Active CN218034355U (en) | 2021-12-08 | 2021-12-08 | Partitioned vacuum furnace for steel bonded hard alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218034355U (en) |
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2021
- 2021-12-08 CN CN202123067932.2U patent/CN218034355U/en active Active
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