Universal Sintered Products and Machinery Is the perfect solution for carbon industry.We Manufacture Various machines which are use to make the carbon Brushes ,Carbon Blocks,Carbon Vanes,Etc. Which has the larger application in various industries like Automobiles, Power tools, sugar,textile,paper mill railways. Etc.This Brushes Can be Use for various application like power tools, Automobile, Industrial , Electrical etc.
Universal Sintered Products and Machinery is the only solution for providing the Testing Equipments Required for measuring the characteristics of brushes. Various Testing instruments are required such as density tester, resistance tester , hardness tester, voltage drop tester, pig tail pull tester, transverse strength testing Machine etc.All this equipments are designed as per as Indian Standard and calibrated with the standard piece .
Density Tester is use to determine the bulk density of carbon brush in green as well as in sintered stage. As per the grades of the brushes density will vary. If the percentage of copper is less density would be less and if percentage of copper is more density is higher.
Density tester is required to determine the bulk density of carbon brushes. Testing is done by immersion method.
Procedure :
The sample shall be weighed in air. All surface of the sample shall be coated as thinly as possible with grease or other waterproof masking material. The sample shall be weighed in air again. The increase due to the coating should not exceed one part in 200. The result shall be expressed in grams to three significant figures.
The sample shall be suspended by a piece of thread from the balance. It shall be immersed completely in water, taking care to remove all air bubbles, and it shall be weighed while it is thus immersed. The minimum possible length of thread shall be used.
So weight measured in air and then weight measure in water. Equipment will show the density in gm/cc directly.