Gold wire, silver wire in the jewelry industry and its electronic industry is very common and important product, due to its large number of specifications, many factories choose to pull different specifications of gold wire, silver wire
Let’s talk about the drawing process of gold and silver wire in detail.
The hydraulic silver ingot cutting machine cuts the silver into small pieces for better feeding.
Because the gold and silver are usually larger, if the gold plate or silver plate is too large, it will be difficult to put into the furnace mouth, what is more,, put in the silver plate too assembly will affect the furnace temperature, the temperature is too low will affect the traction casting. Last, the continuous casting machine
In addition, continuous casting machines require continuous operation, the material is too large to work continuously.
CDOCAST recommends choose hydraulic silver cutting machine, the benefits of hydraulic is safety, and silver will not splash, can prevent unnecessary precious metal material loss.
Continuous casting machine can be divided into two types: upward and downward . For the output of less than 200kg per day, we suggest using downward continuous casting machine If the output is between 200kg-1000kg, upward continuous casting machine is more recommended.
Upward Continuous Casting Machine
Upward continuous Casting Machine is a kind of equipment specially used for the production of special alloy materials, such as pure silver and other precious metals. It includes melting, crystallization and traction.
The melting part of this equipment is a medium-frequency furnace, mainly using thyristor medium-frequency power supply, it is a kind of frequency conversion device that converts three-phase frequency current into single-phase medium-frequency current, mainly used for melting various metal materials and their alloys. It is mainly used for the melting of various metal materials and their alloys.The machine is composed of three-phase bridge full control rectifier circuit and parallel inverter circuit.The control part USES the integrated circuit to realize the microcomputer control, compared with other lines, has the advanced technology, the structure is simple, the performance is stable and reliable, the debugging and maintenance is simple and convenient, the output power is big, the work speed is fast, the efficiency is high, the power consumption is saved, the work is reliable, the failure rate is low.The circuit is also designed with a variety of current, voltage overload of the rapid protection function, so that the operation of the product is very reliable.Suitable for long or intermittent work.
After the raw material is melted to the drawing temperature, the melting furnace with lifting mechanism is lifted upwards to immerse the crystal in the metallic liquid, the crystal is made of graphite, the crystal has a water jacket for the quasi-cooling of the metallic liquid, the metallic liquid in the graphite crystal is cooled by the cooling water and cured, and the wire is finally wound on the reel.
Advantages:
1: Can work continuously for 24 hours, and can be stopped at any time when the furnace is finished.
2: Small size, small footprint, easy installation.
3: Maximum silver yield of 60 kg per hour.
4: Can pull various sizes of busbars to meet different needs of customers.
5: Charcoal cover during smelting and hauling to prevent oxidation.
Downward Continuous Casting Machine:
The continuous casting machine is a process in which the metal is melted and poured into the crystallizer, cooled, and the solidified metal profile is pulled downwards and outwards with the pulling bar.
The continuous casting machine uses vacuum gas protection melting technology in combination with the downward casting method during the production process. Vacuum melting prevents metal oxidation, makes the casting surface brighter, and produces castings that are basically free of pores. The downward casting method follows the gravity of the metal and pulls it downward to maximize the density and precision of the casting profile, so that the internal manhole of the finished product is controlled to the lowest limit, avoiding the creation of shrinkage or cavity. This casting method not only greatly improves the production efficiency, but also makes the production of metal jewelry with high density, bright surface, no pores, making the jewelry more high-end atmosphere.
Advantages:
1:The continuous casting machine using the downward casting method is suitable for gold, silver, 925 silver, copper, brass, gold-silver alloy, gold-copper alloy and other metal materials with good liquidity processing, can play a role in cost savings, improve the quality of the castings, and obtain higher cost efficiency.
2.Vacuum or inert gas protection can be used to effectively improve product quality.
3.Induction heating technology, melting speed block, and can work continuously for 24 hours.
4.Small footprint, easy installation, no on-site training.
It is a metal wire winding equipment, which is mainly used for winding the wire after being drawn by a wire drawing machine onto a reel, and used in combination with a wire drawing machine.
This horizontal wire taking up machine mainly consists of a frame, active device, friction plate device and other parts. When the speed of the wire is lower than the speed of the winder, the friction plate device will glow, making the speed of the winding spindle slower and not causing the wire to be stretched or broken.
This type of roller mill comes with advanced technology level products, the model is m ainly used in the production of rolled sterling silver wire, widely used in the electronics, jewelry industry.
The sterling silver wire roller mill is mainly composed of the body, wire straightening mechanism, roll rolling mechanism, winding mechanism, cooling lubrication system, transmission system, electric control part. The body of the machine is welded with steel plate section steel, and the pinion case is a cast case. The drive part adopts helical gear and spiral bevel gear transmission, the roll adopts special alloy steel and then passes through the heat treatment process, which has the advantages of super wear resistance and impact resistance, etc. The roll adopts spray cooling and lubrication form. The power is controlled by variable frequency stepless speed regulation.
When the wire passes through the rolls, the material is compressed by the rotating rolls, and the wire is extruded from the rolls after the compression is reduced, and finally the wire is conveyed to the receiving tray by a traction device to realize the wire rolling.
Advantages:
1.Adaptive: can roll hard materials, which can not be achieved by the general roller mill.
2.Low energy consumption: there is no need to use the eye die, because there is no need to draw the wire eye die in the work, it reduces the energy generated by the wire deformation heat and the wire friction heat through the eye die; the wire is straight in the work process, reducing the heat generated by the wire bending deformation on the tower wheel; in the rolling process, the amount of wire slipping is small, the useless energy consumed is small.
3.low noise: the traditional water tank drawing machine in the drawing process of wire and tower wheel slipping, and wire through the eye mold generated by the noise, while the roller rolling machine in the rolling process of wire without jitter, after the roller slipping small, so the noise is low.
4.No need to use the drawing die: simple and convenient operation, saving the time of the die threading, reducing the labor intensity of personnel and improving work efficiency.
5.The quality of the wire produced is excellent: the wire is not easy to be broken by the post-sequence drawing, and the wire is rolled to make the metal organization more dense and convenient for the subsequent processing.
It is a metal wire winding equipment, which is mainly used for winding the wire after being drawn by a wire drawing machine onto a reel, and used in combination with a wire drawing machine.
This horizontal wire collector mainly consists of a frame, active device, friction plate device and other parts. When the speed of the wire is lower than the speed of the winder, the friction plate device will glow, making the speed of the winding spindle slower and not causing the wire to be stretched or broken.
This machine is beautiful and simple in structure.
Gold/silver wire drawing process diagram:
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