CN109203330B - Multipurpose intelligence mould pressing stove - Google Patents
Multipurpose intelligence mould pressing stove Download PDFInfo
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- CN109203330B CN109203330B CN201810741053.7A CN201810741053A CN109203330B CN 109203330 B CN109203330 B CN 109203330B CN 201810741053 A CN201810741053 A CN 201810741053A CN 109203330 B CN109203330 B CN 109203330B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/006—Pressing and sintering powders, granules or fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
- B29C43/06—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable in one direction, e.g. mounted on chains, belts
- B29C43/08—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable in one direction, e.g. mounted on chains, belts with circular movement, e.g. mounted on rolls, turntables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
- B29C2043/3405—Feeding the material to the mould or the compression means using carrying means
- B29C2043/3427—Feeding the material to the mould or the compression means using carrying means hopper, vessel, chute, tube, conveying screw, for material in discrete form, e.g. particles or powder or fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C2043/3676—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions
- B29C2043/3689—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions on a support table, e.g. flat disk-like tables having moulds on the periphery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5816—Measuring, controlling or regulating temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a multipurpose intelligent mould pressing furnace, which comprises a mould pressing furnace body, a moving mechanism, a feeding mechanism, a mould pressing mechanism and a cooling mechanism.
Description
Technical Field
The invention relates to the field of mold pressing furnaces, in particular to a multipurpose intelligent mold pressing furnace.
Background
The molding and sintering process includes cold molding the powdered material into compact preforms of different shapes, heating the preforms to a temperature higher than the crystalline melting point to dissolve the resin grains into each other to form a compact continuous whole, and cooling to room temperature to obtain the product.
In the sintering process, the temperature rises, when the polymer is in a high elastic state, a crystal phase is mixed with an amorphous phase, contact is formed among particles, when the melting temperature of a high polymer is reached, the crystal is damaged and converted into the amorphous phase, a crystalline substance is melted, the viscosity of the polymer formed by sintering is high, and the molecules are diffused and bonded during melting, so that the communicated cavities are closed, and the blank becomes a continuous whole. Upon cooling, the temperature is constantly lowered, and below the primary phase transition point, the amorphous phase changes to a crystalline phase.
The cold pressing and sintering molding is similar to the cold pressing and sintering of powder metallurgy, and is a process technology that a certain amount of materials are added into a normal temperature die, are compacted into a compact parison (also called cold parison, blank or ingot) by high pressure, are sent into a high temperature furnace (sintering furnace) for sintering for a certain time, and are cooled to form a product.
The cold-pressed sintering technology is mainly used for processing polymers which are difficult to form by a conventional method, such as Polytetrafluoroethylene (PTFE), ultra-high relative molecular weight polyethylene (UHMWPE), polyimide and the like. The polytetrafluoroethylene is formed by cold pressing and sintering at the earliest time, and the forming process is the most mature, so the polytetrafluoroethylene is representative. Besides the cold-pressing sintering forming method, the sintering forming method of the polytetrafluoroethylene also comprises plunger extrusion forming and paste extrusion forming, but the process is different from the common cold-pressing sintering forming. At present, besides the above, polymers which can be molded by sintering include PCTFE, PE, PP, PVC, PC, PA, PPs, and the like, and these polymers have either high melting points or high viscosities, and are therefore not easily molded by conventional methods.
The invention provides a multipurpose intelligent mould pressing furnace, which can realize the integration of functions such as pressing, sintering, cooling and the like, and has a multifunctional conversion mould, wherein a furnace body is controlled by an intelligent control system, and the accuracy is controlled within the range of +/-5 ℃.
Disclosure of Invention
In order to solve the technical problem, the invention provides a multipurpose intelligent mould pressing furnace.
The invention is realized by the following technical scheme:
the utility model provides a multipurpose intelligence mould pressing stove, multipurpose intelligence mould pressing stove includes mould pressing stove body, moving mechanism, feed mechanism, moulding press, cooling body.
Further, the mould pressing stove body is provided with linear module including the mould pressing stove top cap that is located the top below the mould pressing stove top cap, and mould pressing stove body is inside still to be provided with linear guide, insulating layer, heating furnace base.
Further, it is provided with the slip table to run through on the linear module, is connected with rotatory module on the slip table, rotatory module below is connected with the die carrier, it is connected with 9 not nanostructured's terrace dies to go up the die carrier below, the periphery of rotatory module is provided with the mould depression bar, the mould depression bar is connected with the terrace die that is in under it, orientation module is connected with linear guide, linear module and linear guide parallel arrangement, nevertheless do not lie in same two-dimensional plane, linear guide follow-up in linear module.
Further, feed mechanism sets up in the middle part of the external wall of mould pressing stove body, feed mechanism includes feeder hopper, feeding driver and feed rod, what the feed rod runs through passes through the external wall of mould pressing stove body.
Further, the mould pressing mechanism comprises a base, a motor is arranged in the base, a feeding mechanism is arranged above the base, a lower mould frame is arranged on the feeding mechanism, a concave mould is arranged on the lower mould frame, a feeding hole is formed in the concave mould, the size of the feeding hole is matched with that of a feeding rod, and a cooling mechanism is arranged on the side wall, opposite to the feeding mechanism, of the mould pressing furnace body.
Further, the molding furnace body is constructed as a vertical furnace shell, the inner layer of which is made of 1Cr18Ni 9.
Furthermore, the linear module is controlled by an intelligent control system and can move horizontally, the positioning module penetrates through the linear guide rail, the linear module can move horizontally, the rotary module is controlled by the intelligent control system and can control the horizontal rotation of the upper die frame and the male die, and the die pressing rod is controlled by the intelligent control system and can control the up-and-down movement of the male die. The feeding mechanism is controlled by an intelligent control system under the drive of a motor, the up-and-down movement of the female die can be controlled, the heating temperature of the heating furnace is controlled by the intelligent control system, the feeding driver is controlled by the intelligent control system, and the cooling mechanism is controlled by the intelligent control system.
Furthermore, after the mould pressing mode is started, the female mould ascends under the conveying of the feeding mechanism, the feeding rod is pushed by the feeding driver to be inserted into a feeding hole of the female mould for feeding, the male mould is driven by the mould pressing rod to press the mould pressing material from top to bottom after the feeding is finished, the heating furnace starts to heat in the pressing process, the mould pressing material in the female mould becomes a flowing state under the action of heat and pressure to fill the whole mould cavity, finally, the mould pressing material is pressed into a target product according to the shape of the male mould, and after the mould pressing is finished, the cooling mechanism sprays coolant to cool and solidify the product.
Further, the mold comprises a male mold and a female mold, the male mold and the female mold can bear high pressure, the hardness is not obviously reduced under the conditions of 185-plus-200 ℃, the hardness is high, the friction resistance and the corrosion resistance are realized, the polishing and/or the electroplating are high, the surface of the compression-molded product is ensured to be smooth, preferably, the mold is made of hardened steel, and the mold can be an overflow-free mold and/or an overflow-type mold.
The invention has the beneficial effects that: the invention provides a multipurpose intelligent mould pressing furnace, which can realize the integration of functions of pressing, sintering, cooling and the like, and has a multifunctional conversion mould, wherein a furnace body is controlled by an intelligent control system, the precision is controlled within the range of +/-5 ℃, as different temperatures are required to be set during the mould pressing of different plastics, most thermosetting mould pressing materials can be crosslinked within a larger temperature range, and some plastics can be stored in a refrigeration state to prevent the crosslinking from occurring before the moulding.
Drawings
FIG. 1 is a schematic view of a multi-purpose intelligent molding press of the present invention;
fig. 2 is a schematic diagram of the upper die frame and the male die.
The device comprises a die pressing furnace body 1, a moving mechanism 2, a feeding mechanism 3, a die pressing mechanism 4, a cooling mechanism 5, a die pressing furnace top cover 11, a linear module 12, a linear guide rail 13, a heat insulation layer 14, a heating furnace 15, a heating furnace base 16, a rotary module 21, a positioning module 22, an upper die frame 23, a male die 24, a die pressing rod 25, a feed hopper 31, a feeding driver 32 and a feeding rod 33.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below.
Example 1:
as shown in figure 1, the multipurpose intelligent mold pressing furnace comprises a mold pressing furnace body 1, a moving mechanism 2, a feeding mechanism 3, a mold pressing mechanism 4 and a cooling mechanism 5, wherein the mold pressing furnace body 1 comprises a mold pressing furnace top cover 11 positioned at the top, a linear module 12 is arranged below the mold pressing furnace top cover 11, and a linear guide rail 13, a heat insulation layer 14, a heating furnace 15 and a heating furnace base 16 are further arranged inside the mold pressing furnace body 1.
The linear module 12 is provided with a sliding table in a penetrating manner, the sliding table is connected with a rotary module 21, an upper die frame 23 is connected below the rotary module 21, 9 male dies 24 with different structures are connected below the upper die frame 23, and the male dies 24 are distributed as shown in fig. 2. The periphery of the rotating module 21 is provided with a mould pressing rod 25, the mould pressing rod is connected with a male mould positioned right below the mould pressing rod, the positioning module 22 is connected with the linear guide rail 13, the linear module 12 and the linear guide rail 13 are arranged in parallel but not positioned on the same two-dimensional plane, and the linear guide rail 13 follows the linear module 12.
The feeding mechanism 3 is arranged in the middle of the outer wall of the mould pressing furnace body 1, the feeding mechanism 3 comprises a feeding hopper 31, a feeding driver 32 and a feeding rod 33, and the feeding rod 33 penetrates through the outer wall of the mould pressing furnace body 1; the die pressing mechanism 4 comprises a base, a motor is arranged in the base, a feeding mechanism is arranged above the base, a lower die frame is arranged on the feeding mechanism, a female die is arranged on the lower die frame, a feeding hole is formed in the female die, the size of the feeding hole is matched with that of a feeding rod, and a cooling mechanism 5 is arranged on the side wall, opposite to the feeding mechanism 3, of the die pressing furnace body 1.
Example 2:
the molding furnace body is constructed as a vertical furnace shell, and the inner layer thereof is made of 1Cr18Ni9, has high strength and sufficient rigidity, and does not deform under external force and high temperature. The linear module is controlled by an intelligent control system and can move horizontally, the positioning module penetrates through the linear guide rail and follows the linear module and can move horizontally, the rotary module is controlled by the intelligent control system and can control the horizontal rotation of the upper die frame and the male die, and the die pressing rod is controlled by the intelligent control system and can control the up-and-down movement of the male die. The 9 male dies are selected through horizontal movement and rotation, the feeding mechanism is controlled by the intelligent control system under the driving of the motor and can control the female die to move up and down, the heating temperature of the heating furnace is controlled by the intelligent control system, the feeding driver is controlled by the intelligent control system, and the cooling mechanism is controlled by the intelligent control system.
After the mould pressing mode is started, the female mould ascends under the conveying of the feeding mechanism, the feeding rod is pushed by the feeding driver to be inserted into a feeding hole of the female mould for feeding, the male mould presses the mould pressing material from top to bottom under the driving of the mould pressing rod after the feeding is finished, the heating furnace starts to heat in the pressing process, the mould pressing material in the female mould becomes a flowing state under the action of heat and pressure to fill the whole mould cavity, finally, the mould pressing material is pressed into a target product according to the shape of the male mould, and after the mould pressing is finished, the cooling mechanism sprays coolant to cool and solidify the product.
The mold comprises a male mold and a female mold, wherein the male mold and the female mold can bear high pressure (80 MPa), the hardness is not obviously reduced under the conditions of 185-plus-200 ℃, the hardness is high, the mold is friction-resistant and corrosion-resistant, and the surface of a compression-molded product is ensured to be smooth by highly polishing and/or electroplating.
Different temperatures are required to be set when different plastics are molded, most thermosetting molded materials can be crosslinked in a larger temperature range, some plastics can be stored in a refrigerating state to prevent crosslinking before molding, the cooling mechanism provided by the invention can meet the requirement, and preferably, the molded material for molding is novel plastic with the structural formula shown in the specification
。
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (6)
1. A multipurpose intelligent mould pressing furnace is characterized by comprising a mould pressing furnace body, a moving mechanism, a feeding mechanism, a mould pressing mechanism and a cooling mechanism, wherein the mould pressing furnace body comprises a mould pressing furnace top cover positioned at the top, a linear module is arranged below the mould pressing furnace top cover, a linear guide rail, a heat insulation layer, a heating furnace and a heating furnace base are further arranged inside the mould pressing furnace body, a sliding table is arranged on the linear module in a penetrating manner, a rotating module is connected onto the sliding table, an upper mould frame is connected below the rotating module, 9 male moulds with different structures are connected below the upper mould frame, a mould pressing rod is arranged on the periphery of the rotating module, the mould pressing rod is connected with the male moulds positioned right below the mould pressing rod, a positioning module is connected with the linear guide rail, the linear module is arranged in parallel to the linear guide rail and is not positioned on the same, the positioning module follows the linear module.
2. The embossing furnace as claimed in claim 1, wherein the feeding mechanism is arranged in the middle of the outer wall of the embossing furnace body, and the feeding mechanism comprises a feed hopper, a feed driver and a feed rod, and the feed rod penetrates through the outer wall of the embossing furnace body.
3. The mold pressing furnace according to claim 2, wherein the mold pressing mechanism comprises a base, a motor is arranged in the base, a feeding mechanism is arranged above the base, a lower mold frame is arranged on the feeding mechanism, a female mold is arranged on the lower mold frame, a feeding hole is arranged on the female mold, the feeding hole is matched with the feeding rod in size, and a cooling mechanism is arranged on the side wall of the mold pressing furnace body opposite to the feeding mechanism.
4. The compression molding furnace according to claim 3, wherein the compression molding furnace body is constructed as a vertical furnace shell, and the inner layer thereof is made of 1Cr18Ni 9.
5. The molding furnace according to claim 4, wherein the linear module is controlled by an intelligent control system and can move horizontally, the linear guide rail is provided with a positioning module in a penetrating way and driven by the linear module and can move horizontally, the rotary module is controlled by the intelligent control system and can control the horizontal rotation of the upper mold frame and the male mold, and the mold pressing rod is controlled by the intelligent control system and can control the up-and-down movement of the male mold; the feeding mechanism is controlled by an intelligent control system under the drive of a motor, the up-and-down movement of the female die can be controlled, the heating temperature of the heating furnace is controlled by the intelligent control system, the feeding driver is controlled by the intelligent control system, and the cooling mechanism is controlled by the intelligent control system.
6. The mold pressing furnace according to claim 5, wherein after the mold pressing mode is started, the female mold ascends under the conveyance of the feeding mechanism, the feeding rod is pushed by the feeding driver to be inserted into the feeding port of the female mold for feeding, after the feeding is completed, the male mold is driven by the mold pressing rod to press the mold pressing material from top to bottom, in the pressing process, the heating furnace starts to heat, the mold pressing material in the female mold becomes a flowing state under the action of heat and pressure to fill the whole mold cavity, finally, the mold pressing material is pressed into a target product according to the shape of the male mold, and after the mold pressing is completed, the cooling mechanism sprays coolant to cool and solidify the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741053.7A CN109203330B (en) | 2018-07-08 | 2018-07-08 | Multipurpose intelligence mould pressing stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810741053.7A CN109203330B (en) | 2018-07-08 | 2018-07-08 | Multipurpose intelligence mould pressing stove |
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| Publication Number | Publication Date |
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| CN109203330A CN109203330A (en) | 2019-01-15 |
| CN109203330B true CN109203330B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810741053.7A Active CN109203330B (en) | 2018-07-08 | 2018-07-08 | Multipurpose intelligence mould pressing stove |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123665A (en) * | 2020-09-16 | 2020-12-25 | 嵊州润雅电子科技有限公司 | Blank die-casting device with preheat and detect function |
| CN113048781A (en) * | 2021-03-09 | 2021-06-29 | 王建生 | Vertical sintering furnace convenient to clean |
| CN114261032A (en) * | 2021-12-22 | 2022-04-01 | 江苏百择高分子有限公司 | A variety of color matching and cold-press forming processes for Teflon production |
| CN114274436A (en) * | 2021-12-22 | 2022-04-05 | 江苏百择高分子有限公司 | High-temperature-resistant and wear-resistant Teflon die pressing and sintering equipment and process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01174894A (en) * | 1987-12-28 | 1989-07-11 | Ishikawajima Harima Heavy Ind Co Ltd | Hot press device |
| JP2002105507A (en) * | 2000-09-28 | 2002-04-10 | Sumitomo Heavy Ind Ltd | Electric pressure-sintering apparatus |
| CN204461068U (en) * | 2015-02-04 | 2015-07-08 | 株洲新融利实业有限公司 | A kind of production carbide alloy hot pressing furnace |
-
2018
- 2018-07-08 CN CN201810741053.7A patent/CN109203330B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01174894A (en) * | 1987-12-28 | 1989-07-11 | Ishikawajima Harima Heavy Ind Co Ltd | Hot press device |
| JP2002105507A (en) * | 2000-09-28 | 2002-04-10 | Sumitomo Heavy Ind Ltd | Electric pressure-sintering apparatus |
| CN204461068U (en) * | 2015-02-04 | 2015-07-08 | 株洲新融利实业有限公司 | A kind of production carbide alloy hot pressing furnace |
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| CN109203330A (en) | 2019-01-15 |
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