CN209295653U

CN209295653U - A kind of multi-layer combined type heater Special vacuum sintering furnace

Info

Publication number: CN209295653U
Application number: CN201821993598.9U
Authority: CN
Inventors: 方金华
Original assignee: Tianjin Baishikang Technology Development Co Ltd
Current assignee: Tianjin Baishikang Technology Development Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2019-08-23
Anticipated expiration: 2028-11-30

Abstract

The utility model discloses a kind of multi-layer combined type heater Special vacuum sintering furnaces, including vacuum chamber, muff is fixed on the indoor one end side wall of vacuum, heating device is equipped in the muff, the indoor bottom of vacuum is fixed, and there are two support frames, the upper end of two support frames is respectively and fixedly provided with support rod, one end of two support rods is run through the side wall of muff and is extended in muff, one end of two support rods is each attached to the side of heating device, is connected with electrode on the heating device.Heater is designed to multilayer and fence structure by the utility model, it can be according to the size of product, design the distance between heater element, guarantee that the product between two heaters reaches uniform state within the shorter time, improve heating efficiency, the time is saved, while also ing save the energy, it is practical.

Description

A kind of multi-layer combined type heater Special vacuum sintering furnace

Technical field

The utility model relates to vacuum sintering furnace technical field more particularly to a kind of multi-layer combined type heater Special vacuums Sintering furnace.

Background technique

Vacuum sintering furnace refers in vacuum environment to the stove for being heated article progress protectiveness sintering, heating method Compare more, such as resistance heating, induction heating, microwave heating.Vacuum sintering furnace be using induction heating to be heated article into The stove of row protectiveness sintering, can be divided into the types such as power frequency, intermediate frequency, high frequency, can belong to the subclass of vacuum sintering furnace.

Powder injection forming product special sintering furnace currently on the market is all fixed near the muff inner wall of stove One circle heater element, the heat for heating product is all that ecto-entad is incoming internal by radiations heat energy, and product heating time is long, works as furnace In the sub- biggish situation of volume, product piles up the case where multilayer outside manufacture has reached sintering temperature and constant temperature some time Under, stove core temperature can be only achieved set temperature, and the consistency of performance of such sintered products is very poor, especially structure and The high product of mechanical property requirements does not meet requirement, and the biography that thickness is too big, and product stacking is piled up is piled up additionally, due to product Heat is too slow, and the waste of substantially too long heating time and the energy, energy efficiency is low, while causing production efficiency is low to ask Topic, for this purpose, we have proposed a kind of multi-layer combined type heater Special vacuum sintering furnaces to solve the above problems.

Utility model content

Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of multi-layer combined type proposed Heater Special vacuum sintering furnace.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of multi-layer combined type heater Special vacuum sintering furnace, including vacuum chamber, the indoor one end side wall of vacuum On be fixed with muff, be equipped with heating device in the muff, the indoor bottom of vacuum is fixed there are two support frame, two The upper end of a support frame is respectively and fixedly provided with support rod, and one end of two support rods runs through the side wall of muff and extends to muff Interior, one end of two support rods is each attached to the side of heating device, is connected with electrode on the heating device.

Preferably, the heating device includes the first supporting plate for being fixed on post upper, between waiting on first supporting plate Away from setting there are four opening, the opening runs through equipped with the first collets, through being equipped with the first hair on first collets Hot body, two first heaters of the same side are that the upper end of two the first heaters in one group, same group is respectively and fixedly provided with first Pitman, is connected with third heater between two the first pitmans, and the lower end of two adjacent the first heaters is total in two groups With the first connecting plate is connected with, the bottom in the muff is fixed there are two felt pad, and the upper end of two felt pads is fixed There is the second pitman, wherein the lower end of first heater of in one group is connected on one of them second pitman, it is described One end of electrode extends on another second pitman, and the lower end of first heater in another set is connected to separately On outer second pitman.

Preferably, the heating device includes being separately positioned on multiple second connecting plates of two support rod one end and multiple Second collets, multiple second connecting plates and multiple second collets of the same side are one group, and multiple second connecting plates and more A second collets are staggered, and are fixed to each other between multiple second connecting plates and multiple second collets, the support rod The side of one of them the second connecting plate in a group is fixed in one end, wherein in the second connecting plate and another set in one group Second collets correspond to each other, and the side of multiple second connecting plates and multiple second collets in two groups is equidistantly equipped with more A slot is inserted with the second heater, same level in the slot of two the second connecting plate sides of same level jointly Wherein the second collets and another set in one group in corresponding two slots of the second connecting plate in be inserted with jointly Second supporting plate, wherein the side of second connecting plate in one group is connected to one end of electrode, the other end of the electrode connects It connects on second heater wherein.

Preferably, insulating layer is coated on the support rod.

Preferably, first pitman is made of graphite material.

Preferably, second supporting plate is high strength graphite plate.

Compared with prior art, the utility model has the beneficial effects that

1, by the cooperation between the first heater and the second heater, the product of sintering furnace product different parts is solved Heating degree different problems, guarantee the product thermal histories of different location substantially close to；

2, by the cooperation between electrode, the first pitman, the second pitman and the second connecting plate, ordinary sinter is solved The too long problem of furnace sintering time, it is energy saving while improving production efficiency,

3, it is heated by using Multi-layer warming method, avoids agglomerated material or product because of the guarantor inside and outside product There is the generation of the case where difference in material property caused by warm length of time is different, convenient for obtaining high performance sintered article；

In conclusion heater is designed to multilayer and fence structure by the device, can be designed according to the size of product The distance between heater element guarantees that the product between two heaters reaches uniform state within the shorter time, improves Heating efficiency, saves the time, while also ing save the energy, practical.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of the first heater of multi-layer combined type heater Special vacuum sintering furnace knot Structure schematic diagram；

Fig. 2 be the utility model proposes a kind of multiple first heaters of multi-layer combined type heater Special vacuum sintering furnace Connection status figure；

Fig. 3 be the utility model proposes a kind of the second heater of multi-layer combined type heater Special vacuum sintering furnace knot Structure schematic diagram；

Fig. 4 be the utility model proposes a kind of multiple second heaters of multi-layer combined type heater Special vacuum sintering furnace Connection status figure；

Fig. 5 be the utility model proposes a kind of multi-layer combined type heater Special vacuum sintering furnace A at enlarged drawing.

In figure: 1 vacuum chamber, 2 muffs, 3 electrodes, 4 first supporting plates, 5 first connecting plates, 6 support frames, 7 support rods, 8 One collets, 9 first heaters, 10 first pitmans, 11 second supporting plates, 12 second heaters, 13 second connecting plates, 14 second Collets.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Embodiment 1

Referring to Fig.1,2,5, a kind of multi-layer combined type heater Special vacuum sintering furnace, including vacuum chamber 1, in vacuum chamber 1 One end side wall on be fixed with muff 2, facilitate control temperature, heating device, the bottom in vacuum chamber 1 be equipped in muff 2 Fixed there are two support frames 6, play the role of fixed support, the upper end of two support frames 6 is respectively and fixedly provided with support rod 7, two branch One end of strut 7 is run through the side wall of muff 2 and is extended in muff 2, and one end of two support rods 7 is each attached to heating The side of device is connected with electrode 3 on heating device, provides the electric energy of heating, be coated with insulating layer on support rod 7, prevent from propping up Strut 7 is conductive, and short circuit occurs, convenient that heating device is fixed by the cooperation between support frame 6 and support rod 7, improves The stability of heating device.

In the utility model, heating device includes the first supporting plate 4 for being fixed on 7 upper end of support rod, facilitates placement heating object Product are equidistantly equipped with four openings on the first supporting plate 4, and opening runs through equipped with the first collets 8, prevent the first supporting plate 4 from leading Electricity improves temperature using the first heater 9 through being equipped with the first heater 9 on the first collets 8, and two first of the same side Heater 9 is that the upper end of two the first heaters 9 in one group, same group is respectively and fixedly provided with the first pitman 10, plays conduction Effect, is connected with third heater between two the first pitmans 10, and the lower end of two adjacent the first heaters 9 is total in two groups With the first connecting plate 5 is connected with, electric current is facilitated to pass through using the first connecting plate 5, to improve multiple first heaters 9 and third The temperature of heater can reach the temperature value of needs faster；

Bottom in muff 2 is fixed there are two felt pad, and the upper end of two felt pads is respectively and fixedly provided with the second pitman, In the lower end of first heater 9 in one group be connected on one of them second pitman, one end of electrode 3 extends to separately On outer second pitman, the lower end of first heater 9 in another set is connected to another second pitman On, the first pitman 10 is made of graphite material, under the action of the second pitman, the circulation of circuit is realized, to make First heater 9 and third heater improve temperature under the action of electrode 3.

Embodiment 2

Referring to Fig. 3,4, a kind of multi-layer combined type heater Special vacuum sintering furnace, including vacuum chamber 1, in vacuum chamber 1 It is fixed with muff 2 on the side wall of one end, facilitates control temperature, heating device is equipped in muff 2, the bottom in vacuum chamber 1 is solid Fixed there are two support frames 6, play the role of fixed support, the upper end of two support frames 6 is respectively and fixedly provided with support rod 7, two supports One end of bar 7 is run through the side wall of muff 2 and is extended in muff 2, and one end of two support rods 7 is each attached to heating dress The side set is connected with electrode 3 on heating device, provides the electric energy of heating, be coated with insulating layer on support rod 7, prevent from supporting 7 conduction of bar, occurs short circuit, convenient that heating device is fixed by the cooperation between support frame 6 and support rod 7, improves and adds The stability of thermal.

In the utility model, heating device includes multiple second connecting plates 13 for being separately positioned on two 7 one end of support rod With multiple second collets 14, the second collets 14 are responsible for separating the second supporting plate 11 and the second heater 12, form work plate The short circuit of each layer heater is not made, multiple second connecting plates 13 and multiple second collets 14 of the same side are one group, and multiple the Two connecting plates 13 and multiple second collets 14 are staggered, phase between multiple second connecting plates 13 and multiple second collets 14 It is mutually fixed, facilitate to form serial plate type heater, improves heating speed；

The side of fixed one of them the second connecting plate 13 in a group in one end of support rod 7, wherein second in one group The second collets 14 in connecting plate 13 and another set correspond to each other, multiple second connecting plates 13 and multiple second in two groups The side of collets 14 is equidistantly equipped with multiple slots, is total in the slot of two 13 sides of the second connecting plate of same level With the second heater 12 is inserted with, convenient for plugging multiple second heaters 12, moreover it is possible to adjust the second heater 12 as needed Quantity, the second connecting plate 13 corresponding two in wherein the second collets 14 and another set in one group of same level The second supporting plate 11 is inserted in a slot jointly, prevents the second supporting plate 11 conductive, convenient for article is placed on the second supporting plate 11, Wherein the side of second connecting plate 13 in one group is connected to one end of electrode 3, the other end connection of electrode 3 wherein one On a second heater 12, the second supporting plate 11 is that high strength graphite plate conveniently makes different positions under the action of the second connecting plate 13 The second heater 12 set is conductive, to improve the temperature of the second heater 12.

In the utility model, when being heated using vacuum sintering furnace to metal material or powder, first according to heating object The characteristics of product, selects vertical heater sintering furnace or horizontal heater sintering furnace, when selecting vertical heater sintering furnace, passes through Two support rods 7 are fixed support frame 6, and then first supporting plate 4 is fixed using support rod 7, by need to heat Article is placed on the first supporting plate 4, and insulating layer is coated on support rod 7, non-conductive, and the side of electrode 3 connects one first hair Hot body 9, one end of the first heater 9 are connected on the first pitman 10, and the first pitman 10 connects another first heater 9, to keep multiple first heaters 9 conductive, then heated by electric energy, in the heating of the first heater 9, due to The effect of the first collets 8 on first supporting plate 4 prevents the first supporting plate 4 to carry out conduction, then intermediate since no second connects It takes over the baton and carries out conduction, two the first heaters 9 carry out conduction by the first connecting plate 5, and 9 temperature of the first heater increases, thus Article on first supporting plate 4 is heated, when selecting horizontal heater sintering furnace, one end of electrode 3 connects one second company One end of fishplate bar 13, the second connecting plate 13 connects second collets 14, to keep multiple second connecting plates 13 and second exhausted Then the interlaced fixation of edge block 14 is inserted into the second heater 12 in the slot of corresponding two the second connecting plates 13, side Just it is heated, the second supporting plate 11 is inserted into the slot of corresponding second collets 14 and the second connecting plate 13, to make Second supporting plate 14 is non-conductive, and the article for needing to heat is placed on the second supporting plate 14, is then heated to article.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims

1. a kind of multi-layer combined type heater Special vacuum sintering furnace, including vacuum chamber (1), it is characterised in that: the vacuum chamber (1) it is fixed on one end side wall in muff (2), heating device is equipped in the muff (2), the vacuum chamber (1) is interior Bottom it is fixed there are two support frame (6), the upper end of two support frames (6) is respectively and fixedly provided with support rod (7), two support rods (7) One end run through the side wall of muff (2) and extend in muff (2), one end of two support rods (7) be each attached to plus The side of thermal is connected with electrode (3) on the heating device.

2. a kind of multi-layer combined type heater Special vacuum sintering furnace according to claim 1, which is characterized in that described to add Thermal includes the first supporting plate (4) for being fixed on support rod (7) upper end, is equidistantly equipped with four on first supporting plate (4) and opens Mouthful, the opening runs through equipped with the first collets (8), through being equipped with the first heater on first collets (8) (9), two first heaters (9) of the same side are that the upper end of two the first heaters (9) in one group, same group is respectively and fixedly provided with First pitman (10), is connected with third heater between two the first pitmans (10), two first adjacent hairs in two groups The lower end of hot body (9) is connected with the first connecting plate (5) jointly, and bottom in the muff (2) is fixed there are two felt pad, and two The upper end of a felt pad is respectively and fixedly provided with the second pitman, wherein the lower end of first heater of in one group (9) is connected to it In on second pitman, one end of the electrode (3) extends on another second pitman, one in another set The lower end of a first heater (9) is connected on another second pitman.

3. a kind of multi-layer combined type heater Special vacuum sintering furnace according to claim 1, which is characterized in that described to add Thermal includes multiple second connecting plates (13) for being separately positioned on two support rod (7) one end and multiple second collets (14), multiple second connecting plates (13) of the same side and multiple second collets (14) are one group, and multiple second connecting plates (13) it is staggered with multiple second collets (14), phase between multiple second connecting plates (13) and multiple second collets (14) It is mutually fixed, the side of fixed one of them the second connecting plate (13) in a group in one end of the support rod (7), wherein in one group The second connecting plate (13) and another set in the second collets (14) correspond to each other, multiple second connecting plates in two groups (13) and the side of multiple second collets (14) is equidistantly equipped with multiple slots, two the second connecting plates of same level (13) it is inserted with jointly in the slot of side the second heater (12), wherein the second collets in one group of same level (14) it is inserted with the second supporting plate (11) jointly in corresponding two slots of the second connecting plate (13) and in another set, wherein The side of second connecting plate (13) in one group is connected to one end of electrode (3), and the other end of the electrode (3) is connected to On one of them second heater (12).

4. a kind of multi-layer combined type heater Special vacuum sintering furnace according to claim 1, which is characterized in that the branch Strut is coated with insulating layer on (7).

5. a kind of multi-layer combined type heater Special vacuum sintering furnace according to claim 2, which is characterized in that described One pitman (10) is made of graphite material.

6. a kind of multi-layer combined type heater Special vacuum sintering furnace according to claim 3, which is characterized in that described Two supporting plates (11) are high strength graphite plate.