CN211804373U - Composite nonferrous metal wood grain gold sintering equipment - Google Patents
Composite nonferrous metal wood grain gold sintering equipment Download PDFInfo
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- CN211804373U CN211804373U CN201922115731.1U CN201922115731U CN211804373U CN 211804373 U CN211804373 U CN 211804373U CN 201922115731 U CN201922115731 U CN 201922115731U CN 211804373 U CN211804373 U CN 211804373U
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- sintering bin
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Abstract
The utility model relates to the technical field of metallurgical equipment, in particular to a composite nonferrous metal wood grain gold sintering device, which comprises a frame, wherein a sintering bin is fixed in the middle of the frame, a heating element is encircled on the side wall of the sintering bin, and a temperature sensor is arranged in the sintering bin; the sintering bin is provided with a pipeline system, and the pipeline system is connected with a protective gas tank; the upper part of the top of the sintering bin and the lower part of the bottom of the sintering bin are respectively provided with a hydraulic cylinder, the two piston rods respectively penetrate through the top and the bottom of the sintering bin, and the tail ends of the two piston rods are provided with corresponding clamping plates. The equipment solves the problem that the pressure can not be maintained and the wood grain gold can not be oxidized in the wood grain gold processing, and the processing quality of the wood grain gold raw material is improved.
Description
Technical Field
The utility model relates to a metallurgical equipment technical field specifically is a compound non ferrous metal wood grain gold sintering equipment.
Background
The wood grain gold process is a metal technology that presents wood-like patterns on the surface of metal. The traditional method for manufacturing the wood grain gold adopts metal plates formed by stacking a plurality of metals together to form wood grain patterns on the surfaces of the metal plates through high-temperature fusion welding, forging and extension and repeated overlapping, and then adopts a mode of carving with a steel chisel or cutting with a drill bit.
The manufacturing method of the wood grain gold disclosed in the patent document with the publication number of CN102962640A is to wipe clean the cleaned wood grain metal raw material quickly and stack the cleaned wood grain metal raw material on a die in a staggered way, wherein the die is formed by connecting two pieces of high-temperature hot die steel through a screw sleeve; placing the fastened die into a stainless steel foil box, simultaneously pouring charcoal particles into the stainless steel foil box, placing the sealed stainless steel foil box into an electric kiln, and keeping the constant temperature for 6-10 hours; and (4) closing the electric kiln, taking out the stainless steel foil box, and naturally cooling to normal temperature to obtain the wood grain metal rough blank.
The manufacturing method of the wood grain gold provided by the publication number CN108085533A adopts two steel plates to clamp the superposed red copper compound, brass compound and cupronickel compound tightly, and fixes the two steel plates by screws, after clamping and fixing, the steel plates, the red copper compound, the brass compound and the cupronickel compound are placed in an electric kiln for heating and welding, and after heating, the steel plates are taken out and placed statically, and cooled to form the wood grain metal rough blank.
The manufacturing method of the wood grain gold is based on a diffusion welding method, and is used for carrying out integral diffusion sintering treatment on gold base, silver base, copper base and other non-ferrous metal materials according to the requirements of jewelry materials and handicraft materials, and enabling the multi-metal materials after diffusion sintering to present various patterns through multiple means such as later forging, twisting, drilling and milling, calendaring, coloring, chemical corrosion and the like.
The sintering process of the wood grain gold has the following defects: the original process adopts fixed superposed metal raw materials bundled by iron wires or clamped by steel plates, and the used iron wires and steel plates expand by heating along with the rise of sintering temperature, so that the clamping force on the metal is instantly reduced, and the pressure can not be effectively and continuously maintained, thereby causing the gaps among the metal raw materials to grow and form diffusion cavities;
the original wood grain gold sintering process adopts an electric kiln as heating equipment, the heating mode adopted by the electric kiln is resistance wire radiation heating, the temperature rise is slow, the production efficiency is relatively low, the temperature rise process is in the atmospheric environment, partial nonferrous metals react with oxygen in the air to generate a thick oxide skin, the diffusion reaction between metal raw materials is limited at the moment, in addition, the pressure can not be maintained continuously, the diffusion can not be effectively carried out at the position with a large cavity and the thick oxide layer, the metal raw materials can not be completely welded to form an interlayer, the later-stage forging process is easy to be layered and cracked or layered and stripped from the position without diffusion, and the yield of the wood grain gold artware is reduced.
Disclosure of Invention
The utility model provides a compound non ferrous metal wood grain gold sintering equipment to there is unable pressurize that lasts in current wood grain gold preparation method, exists oxide layer scheduling problem between the metal raw and other materials.
The sintering equipment comprises a frame, wherein a sintering bin is fixed in the middle of the frame, a heating element is arranged on the side wall of the sintering bin in a surrounding mode, and a temperature sensor is arranged in the sintering bin; the sintering bin is provided with a pipeline system, and the pipeline system is connected with a protective gas tank;
hydraulic cylinders are respectively arranged above the top and below the bottom of the sintering bin, and piston rods of the hydraulic cylinders coaxially move along the vertical direction; the top of the bracket is provided with an upper ejector rod which is in close contact with a hydraulic cylinder positioned at the top; the bottom of the bracket is provided with a pressure sensor, the top of the pressure sensor is provided with a lower ejector rod, and the pressure sensor and the lower ejector rod are in close contact with a bottom hydraulic cylinder; the two piston rods respectively penetrate through the top and the bottom of the sintering bin, and sealing rings are arranged at the contact positions of the sintering bin and the piston rods; the tail ends of the two piston rods are provided with corresponding clamping plates;
the heating element is resistance wire or induction coil.
For preventing the generation of the metal oxide layer, the vacuum diffusion sintering technology is mainly adopted industrially, but the vacuum sintering equipment has large volume, expensive equipment price and complex equipment operation; the sintering device of the invention adopts the argon gas introduced into the sintering bin to avoid metal oxidation, and has smaller volume and lower equipment manufacturing cost. In addition, the sintering device of the invention is pre-pressurized to proper pressure through the hydraulic cylinder according to the performances of different metals during operation, and the pressure maintaining condition is monitored through the pressure sensor. When the temperature is raised, the metal surface is subjected to pressure, so that the surface layer is subjected to larger plastic deformation, the contact area between the metal sheets is gradually enlarged under the continuous pressure, finally the whole joint surface is reliably contacted, and the diffusion effect is better carried out, so that the quality of the prepared wood grain gold raw material is ensured to be excellent.
Drawings
Fig. 1 is a sectional view of a sintering apparatus.
Fig. 2 is a schematic perspective view of a sintering apparatus.
The device comprises a frame 1, a sintering bin 2, a pipeline system 3, a protective gas tank 4, a hydraulic cylinder 5, a pressure sensor 6, a heating element 7 and a temperature sensor 8.
Detailed Description
Example 1: the sintering equipment comprises a frame 1, wherein a sintering bin 2 is fixed in the middle of the frame 1, a heating element 7 is arranged on the side wall of the sintering bin 2 in a surrounding mode, and the heating element 7 is a resistance wire; a temperature sensor 8 is arranged in the sintering bin 2; the sintering bin 2 is provided with a pipeline system 3, and the pipeline system 3 is connected with a protective gas tank 4; hydraulic cylinders 5 are respectively arranged above the top and below the bottom of the sintering bin 2, and piston rods of the hydraulic cylinders 5 coaxially move along the vertical direction; the top of the bracket is provided with an upper ejector rod which is tightly contacted with a hydraulic cylinder 5 positioned at the top; the bottom of the bracket is provided with a pressure sensor 6, the top of the pressure sensor 6 is provided with a lower ejector rod, and the pressure sensor 6 and the lower ejector rod are in close contact with a bottom hydraulic cylinder 5; the two piston rods respectively penetrate through the top and the bottom of the sintering bin 2, and sealing rings are arranged at the contact positions of the sintering bin 2 and the piston rods; the tail ends of the two piston cylinders are provided with corresponding clamping plates.
Example 2: the sintering equipment comprises a frame 1, wherein a sintering bin 2 is fixed in the middle of the frame 1, a heating element 7 is arranged on the side wall of the sintering bin 2 in a surrounding mode, and the heating element 7 adopts an induction coil; a temperature sensor 8 is arranged in the sintering bin 2; the sintering bin 2 is provided with a pipeline system 3, and the pipeline system 3 is connected with a protective gas tank 4; hydraulic cylinders 5 are respectively arranged above the top and below the bottom of the sintering bin 2, and piston rods of the hydraulic cylinders 5 coaxially move along the vertical direction; the top of the bracket is provided with an upper ejector rod which is tightly contacted with a hydraulic cylinder 5 positioned at the top; the bottom of the bracket is provided with a pressure sensor 6, the top of the pressure sensor 6 is provided with a lower ejector rod, and the pressure sensor 6 and the lower ejector rod are in close contact with a bottom hydraulic cylinder 5; the two piston rods respectively penetrate through the top and the bottom of the sintering bin 2, and sealing rings are arranged at the contact positions of the sintering bin 2 and the piston rods; the tail ends of the two piston rods are provided with corresponding clamping plates. If the temperature of the sintering bin 2 needs to be raised to 800 ℃, the resistance wire needs to continuously work for 3.5 hours.
Because the temperature of the resistance wire is slowly increased, atoms in the metal gradually generate crystals, crystal grains gradually increase along with the time, and the mechanical property of the metal is deteriorated due to excessive growth of the crystal grains, so that the metal extension is limited finally; finally, as the temperature is slowly increased, the alloy layer formed between the metal raw materials is gradually thickened along with the extension of the diffusion welding time, the color of the alloy layer is between the two metal raw materials, the effects of post coloring treatment and texture corrosion texture are deteriorated, and the wood grain gold is easy to break and delaminate in the processing process due to the fact that the hardness of the alloy layer relative to the metal raw materials is increased, the yield strength is increased, the melting point is reduced and the ductility is reduced. Optimally, the heating element 7 of the sintering device can adopt an induction coil, and the heating efficiency of the induction coil is obviously higher than that of a resistance wire: if the sintering equipment needs to be heated to 800 ℃, the induction coil only needs to work for 5 min.
Claims (2)
1. The composite nonferrous metal wood grain gold sintering equipment is characterized by comprising a rack (1), wherein a sintering bin (2) is fixed in the middle of the rack (1), a heating element (7) is arranged on the side wall of the sintering bin (2) in a surrounding manner, and a temperature sensor (8) is arranged in the sintering bin (2); the sintering bin (2) is provided with a pipeline system (3), and the pipeline system (3) is connected with a protective gas tank (4);
hydraulic cylinders (5) are respectively arranged above the top and below the bottom of the sintering bin (2), and piston rods of the hydraulic cylinders (5) coaxially move along the vertical direction; the top of the bracket is provided with an upper ejector rod which is tightly contacted with a hydraulic cylinder (5) positioned at the top; the bottom of the bracket is provided with a pressure sensor (6), the top of the pressure sensor (6) is provided with a lower ejector rod, and the pressure sensor (6) and the lower ejector rod are tightly contacted with a bottom hydraulic cylinder (5); the two piston rods respectively penetrate through the top and the bottom of the sintering bin (2), and sealing rings are arranged at the contact positions of the sintering bin (2) and the piston rods; the tail ends of the two piston rods are provided with corresponding clamping plates.
2. The composite nonferrous metal woodgrain gold sintering apparatus as claimed in claim 1, wherein the heating element (7) is selected from a resistance wire or an induction coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922115731.1U CN211804373U (en) | 2019-11-29 | 2019-11-29 | Composite nonferrous metal wood grain gold sintering equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922115731.1U CN211804373U (en) | 2019-11-29 | 2019-11-29 | Composite nonferrous metal wood grain gold sintering equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211804373U true CN211804373U (en) | 2020-10-30 |
Family
ID=73031717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922115731.1U Expired - Fee Related CN211804373U (en) | 2019-11-29 | 2019-11-29 | Composite nonferrous metal wood grain gold sintering equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211804373U (en) |
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2019
- 2019-11-29 CN CN201922115731.1U patent/CN211804373U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201030 Termination date: 20211129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |