Double-layer sintering support of powder metallurgy mesh belt furnace

Abstract

The utility model discloses a double-layer sintering support of a powder metallurgy mesh belt furnace, which belongs to the field of powder metallurgy sintering supports and comprises support single bodies which are distributed in an up-and-down stacking mode, each support single body comprises a stackable stand column, each stackable stand column comprises a limiting step portion and a stand column body which are distributed from bottom to top, and the stand column body is sleeved with a carrying disc. The limiting step part limits the carrying disc connected to the stand column body in a sleeving mode, so that the carrying disc can conveniently carry a powder metallurgy part to be sintered. A conical insertion table is arranged at the upper end of the stand column body, a conical insertion hole matched with the conical insertion table in shape is formed in the lower end of the limiting step part, and the conical insertion table located in the lower-layer support single body is inserted into the conical insertion hole located in the upper-layer support single body, so that stacking of the upper-layer support single body and the lower-layer support single body is achieved. The efficiency of the powder metallurgy mesh belt furnace is improved through double-layer sintering of the support.

Description

TECHNICAL FIELD

[0001] The utility model belongs to powder metallurgy sintering support field, concretely relates to a double -deck sintering support of powder metallurgy mesh belt furnace. BACKGROUND

[0002] The function of powder metallurgy sintering support is to provide plane support for powder metallurgy metal parts in mesh belt furnace sintering environment and obtain better flatness, and the existing sintering support is mostly graphite or ceramic material, and the material thickness is mostly 8-20mm.

[0003] In the prior art, the quality and thickness of powder metallurgy sintering support are generally large, more energy is absorbed in the production process, heat is wasted, the energy consumption of mesh belt furnace is increased, and the powder metallurgy sintering support in the mesh belt furnace cooling interval is poor in heat dissipation performance due to its large thickness, the temperature difference between the upper and lower powder metallurgy products is too large, the product is warped and deformed, and the quality of the product is affected. At the same time, the existing powder metallurgy mesh belt furnace sintering support generally adopts single-layer sintering, and there is the problem of low efficiency.

[0004] Therefore, how to provide a new or otherwise improved powder metallurgy sintering support to alleviate or at least alleviate the above problems or defects is a current problem to be solved. UTILITY MODEL CONTENTS

[0005] In view of one or more of the above defects or improvement needs of the prior art, the utility model provides a double -deck sintering support of powder metallurgy mesh belt furnace, which has the advantages of thin overall thickness, thin contact surface, double -deck sintering improves sintering furnace efficiency, etc.

[0006] To achieve the above purpose, the utility model provides a double -deck sintering support of powder metallurgy mesh belt furnace, which comprises a support monomer stacked in upper and lower layers, the support monomer comprises a stackable column, the stackable column comprises a limiting step portion and a column body distributed from bottom to top, a loading disc is sleeved on the column body, the limiting step portion limits the loading disc sleeved on the column body, and the loading disc is convenient for loading the powder metallurgy parts to be sintered;

[0007] The upper end of the column body is provided with a tapered insertion station, the lower end of the limiting step portion is provided with a tapered insertion hole matched with the shape of the tapered insertion station, the tapered insertion station in the lower layer support monomer is inserted into the tapered insertion hole in the upper layer support monomer, and the upper and lower two layers of support monomers are stacked.

[0008] As a further improvement of the utility model, the loading disc comprises a circular tray, and a limiting hole is arranged in the middle of the circular tray.

[0009] As a further improvement of the present application, the thickness of the object carrier is 2.5mm.

[0010] As a further improvement of the present application, the tapered insertion station comprises a cylinder, and a conical section is arranged on the top of the cylinder.

[0011] As a further improvement of the present application, the diameter of the limiting step is larger than the diameter of the limiting hole, so as to limit the object carrier sleeved on the column body.

[0012] As a further improvement of the present application, the components are made of graphite material.

[0013] Overall, the above technical scheme conceived by the present application has the following beneficial effects compared with the prior art:

[0014] The double-layer sintering support of the powder metallurgy mesh belt furnace has the advantages that: the double-layer sintering is realized by arranging the stackable column and the 2.5mm object carrier, so that the thickness of the sintering support is reduced as a whole, the weight is reduced, the heat absorption of the support is reduced, the energy-saving benefit is greatly brought, the support can be cooled synchronously with the product due to the thin support of the object carrier and the product contact surface, the temperature difference between the upper and lower surfaces of the powder metallurgy product is small, the planeness of the product is ensured, and the production efficiency is improved due to the unique stackable design of the support. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the double-layer sintering support of the powder metallurgy mesh belt furnace.

[0016] Figure 2 It is a structure schematic view of the single support.

[0017] Figure 3 It is a structure schematic view of the stackable column.

[0018] Figure 4 It is a structure schematic view of the object carrier.

[0019] Figure 5 It is an angle sectional view of the double-layer sintering support of the powder metallurgy mesh belt furnace.

[0020] The meanings of the marks in the drawings are as follows:

[0021] 1, stackable column; 101, limiting step; 102, column body; 103, tapered insertion station; 1031, cylinder; 1032, conical section; 104, tapered insertion hole; 2, object carrier; 201, circular tray; 202, limiting hole; DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0023] The terms used herein are only used to describe specific embodiments, and are not intended to limit the present application. The terms "include", "contain" and the like used herein indicate the existence of the described features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0024] All terms used herein (including technical and scientific terms) have meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted to have meanings consistent with the context of the present specification, and should not be interpreted in an idealized or overly formal manner.

[0025] In the embodiments, Figures 1-5 It is given that, Figure 1 It is a schematic diagram of the double-layer sintering support structure of the powder metallurgy mesh belt furnace of the present application; Figure 2 It is a schematic diagram of the single support structure of the present application; Figure 3 It is a schematic diagram of the stackable column structure of the present application; Figure 4 It is a schematic diagram of the object carrier structure of the present application; Figure 5 It is a one-angle sectional view of the double-layer sintering support structure of the powder metallurgy mesh belt furnace of the present application, which includes support monomers stacked in upper and lower layers. The support monomers each include a stackable column 1, which includes a limiting step portion 101 and a column body 102 distributed from bottom to top. An object carrier 2 is sleeved on the column body 102. The limiting step portion 101 limits the object carrier 2 sleeved on the column body 102, so as to facilitate the object carrier to carry the powder metallurgy parts to be sintered.

[0026] The upper end of the column body 102 is provided with a tapered insertion station 103, and the lower end of the limiting step portion 101 is provided with a tapered insertion hole 104 matched with the shape of the tapered insertion station 103. The tapered insertion station 103 in the lower-layer support monomer is inserted into the tapered insertion hole 104 in the upper-layer support monomer, so as to realize the stacking of the upper and lower layers of support monomers.

[0027] The object carrier 2 includes a circular tray 201, and a limiting hole 202 is provided in the middle of the circular tray 201. The limiting hole 202 can limit the object carrier 2.

[0028] The thickness of the carrier disc 2 is 2.5 mm, and the thin thickness makes the carrier disc 2 have good heat dissipation performance.

[0029] The tapered plug-in station 103 comprises a cylinder 1031, and a circular cone 1032 with the same diameter is arranged at the top of the cylinder 1031.

[0030] The limiting step part 101 has a diameter larger than that of the limiting hole 202, and is used for limiting the carrier disc 2 sleeved on the column body 102.

[0031] The components are all made of graphite material, so that each component has the characteristics of high temperature resistance.

[0032] The working process of the utility model is as follows: firstly, the lower single support is assembled, and the specific steps are that the stackable column 1 is placed on a plane, the limiting hole 202 of the carrier disc 2 is passed through the column body 102 and is attached to the upper surface of the limiting step part 101, at this time, the powder metallurgy part is placed on the carrier disc 2, and the lower single support is obtained; similarly, the upper single support is assembled, and the specific steps are the same as above, and the upper single support is obtained, at this time, the tapered plug-in station 103 in the lower support single body is inserted into the tapered plug-in hole 104 in the upper support single body, the layering of the upper and lower support single bodies is realized, at this time, the double-layer sintering support is obtained, and the double-layer sintering support is placed into the powder metallurgy mesh belt furnace for sintering, and the powder metallurgy part is obtained after completion.

[0033] In conclusion, the double-layer sintering support of the powder metallurgy mesh belt furnace has the advantages that the stackable column and the 2.5mm carrier disc are arranged, the thickness of the sintering support is thinned as a whole, the weight is reduced, the double-layer sintering is realized, the heat absorption of the support is reduced, the energy-saving benefit is brought, the carrier disc and the product contact surface are thin, the support can be heat-dissipated synchronously with the product, the temperature difference between the upper and lower powder metallurgy products is small, the good flatness of the product is ensured, and the sintering furnace can be used for double-layer sintering due to the unique stacking design, and the production efficiency is improved.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A double layer sintering support for a powder metallurgical mesh belt furnace, characterized in that: The application relates to a double-layer sintering support which comprises upper and lower stacked support units, wherein each of the support units comprises stackable columns (1) which comprise limiting step portions (101) distributed from bottom to top and column bodies (102), a loading plate (2) is sleeved on the column body (102), the limiting step portions (101) limit the loading plate (2) sleeved on the column body (102), and the loading plate (2) is convenient for carrying powder metallurgy pieces to be sintered; The upper end of the column body (102) is provided with a tapered insertion station (103), the lower end of the limiting step portion (101) is provided with a tapered insertion hole (104) matched with the shape of the tapered insertion station (103), the tapered insertion station (103) located in the lower support unit is inserted into the tapered insertion hole (104) located in the upper support unit, and the upper and lower two layers of support units are stacked.

2. The double layer sintering support of a powder metallurgy mesh belt furnace according to claim 1, characterized in that: The loading plate (2) comprises a circular tray (201), and a limiting hole (202) is arranged in the middle of the circular tray (201).

3. The double deck sintering support of a powder metallurgical mesh belt furnace according to claim 1, characterized in that: The thickness of the loading plate (2) is 2.5 mm.

4. The double deck sintering support of a powder metallurgical mesh belt furnace according to claim 1, characterized in that: The tapered insertion station (103) comprises a cylinder (1031), and a circular cone (1032) with the same diameter is arranged on the top of the cylinder (1031).

5. The double deck sintering support of a powder metallurgical mesh belt furnace according to claim 2, characterized in that: The diameter of the limiting step portion (101) is larger than the diameter of the limiting hole (202), so that the loading plate (2) sleeved on the column body (102) is limited.

6. The double deck sintering support of a powder metallurgical mesh belt furnace according to claim 1, characterized in that: The double-layer sintering support is made of graphite material.

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