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Cemented carbide die

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Dołączył: 29 Lip 2020
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PostWysłany: Sro Gru 09, 2020 11:40    Temat postu: Cemented carbide die Odpowiedz z cytatem

Cemented carbide die is in other words alloy material made associated with hard compound of refractory material and binding metal as a result of powder metallurgy process. The hardness of cemented carbide is rather high, so pay attention on the method when polishing that cemented carbide die.
lThe polish on the powder metallurgy mould
lThe polish of the tungsten carbide die and carbide punch dies
The polish in the powder metallurgy mould
There is still a wide range of polishing methods for powder snow metallurgy molds by normal operation. The main tools used are brush, archive, scraper, etc. However, handbook operation has two cons, one is that the caliber of polishing is difficult to manage, judging by the functioning experience, the other is always that the production efficiency is definitely not high, only one product can be processed at this time, the labor intensity is usually large, the production cost is high, it is difficult to accomplish large-scale production.
In inclusion to manual polishing, there is possibly mechanical polishing, which is far more convenient than manual polishing.
1. Powder metallurgy die polishing by way of rolling mill
The rotating brush drives the workpiece in order to rotate. During the moving process, the brush loads the burrs within the workpiece and makes your burrs fall off, to be able to achieve the purpose with polishing the powder metallurgy would mould. Reasonable selection of clean material and rotation speed and other parameters, can be prepared with different powder metallurgy expire.
2. Polish with polishing off machine
Finishing machine is especially divided into vibration finish machine, centrifugal light design machine, magnetic light adornment machine, flow finishing machine, roller light decoration appliance, which vibration finishing device, roller light decoration machine have been widely used in powder snow metallurgy die polishing industry.
3. Sand blasting polishing
Sand blasting would be to use compressed air as being the power to form a high-speed jet beam, the high-speed jet into the powder metallurgy mold to become treated, the use of abrasive affect the powder metallurgy style surface and cutting activity, so that the surface of the carbide die to get yourself a certain degree of personal hygiene and different roughness, to enhance the mechanical properties of the carbide die surface.
SOME. Heat polishing
The principle could be that the powder metallurgy mould to become polished is placed inside a sealed container with satisfactory strength, and then fed suitable certain proportion of pre-mixed combustible energy, which is ignited by the spark plug to produce an immediate high temperature to remove the burrs on the carbide die surface. The polishing effect of your method is good, it will not affect the corporation of parts, it is applicable to a number of, but the cost can be relatively high.
The polish in the tungsten carbide die along with carbide punch dies
1. Chemical polishing
The convex part regarding tungsten carbide die and carbide value die in the chemical carrier can be dissolved in preference to obtain a smooth outside. Complex shapes can possibly be polished without complex gear, and many pieces can be polished at the same time.
2. Electrolytic polishing
A similar basic principle as inorganic polishing, by the selective dissolution of the tungsten carbide die in addition to carbide punch die surface belonging to the small projections, smooth this surface. Compared with compound polishing, the cathode reaction might be eliminated and the effect is better.
3. Ultrasonic polishing
The carbide die is placed in the abrasive suspension and turned to the ultrasonic field together, and the abrasive is actually ground and polished for the surface of the carbide die by the vibration of the ultrasonic wave. This method will not cause deformation with the cemented carbide, but it is difficult to manufacture as well as install tooling.
4. Water polishing
Fluid polishing is actually driven by hydraulic demand, so that the fluid medium carrying abrasive particles flows backward and forward across the surface from the carbide die at high-speed to achieve the reason for polishing.
5. Magnetic farming and polishing
Magnetic abrasives utilized to form abrasive brushes under the action of your magnetic field to mill the tungsten carbide expire and carbide punch die.

The mold determines the forming of any part. For the accuracy of the part, the polishing of the carbide die is critical.
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Wysłany: Sro Gru 09, 2020 11:40    Temat postu:

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