Why is it a flat wire? Miniaturization – high slot full rate, high power density Fast heat dissipation – large wire contact area and short heat dissipation path High reliability – ordered distribution The high-efficiency interval is larger than that…
The trend of copper and aluminum prices will stop falling and rebound next week?
1. What caused the decline of precious metals in the early stage? One is the tightening of global currency liquidity; Second, basic metals such as copper, aluminum and nickel are affected by demand; Third, the risk of overseas inflation is…
2022.8.11Copper and aluminum prices today
Copper and aluminum prices today Copper price: 73,320 yuan/ton, down 560 RMB/ton Aluminum price: 22,890 yuan/ton, down 100 RMB/ton Market analysis Reference tips: The severe epidemic situation has weakened demand expectations, and the copper price has fallen, which is in…
Enameled wire production process: take-up
The purpose of winding and arranging the wire is to wind the enameled wire on the spool continuously, tightly and evenly. It is required that the wire take-up mechanism has a smooth transmission, low noise, proper tension and regular wire…
Enameled wire production process: pay off
.Simple and not enough attention, with the increase of enameled wire line speed, labor productivity. The growth of the pay-off part has also attracted people’s attention, in a normal operation On the enameling machine, most of the operator’s energy and…
Test 21 : Weightless (applicable to enameled round wire)
Weight loss is a property related to the degree of cure of the enameled wire paint film. 1.1 Specimen Preparation Scrub a sample with a paint film content of not less than 0.5g by an appropriate method that does not…
Test 10: Softening breakdown (applicable to enameled round wire and film wrapped round wire)
The temperature at which a short-circuit current is generated between the samples for softening breakdown by making the two wire samples intersect vertically, and applying a specified load to the intersection point. express. NOTE: In many cases, the softening breakdown…
Test 9 : Thermal shock (for enameled wire and film wrapped wire)
Thermal shock reflects the ability of a specimen to withstand the temperature after being stretched and/or coiled or bent on a round bar. 1.1 Sample Preparation 1.1.1 Park Line Specimens shall be prepared as follows: For enameled wires whose conductor…
Test 15:Temperature index
Abstract: Determination of enameled round wire by constant temperature life and dynamic thermogravimetric test The method of thermal life and temperature index, as the choice for evaluating the insulation structure of electrical equipment The basis for choosing enameled wire. After…
Test 23: Pin hole test
Scope of application: It is suitable for the continuity test of checking the paint film of enameled round wire with a nominal diameter of 0.070mm and above and 0.700mm and below. According to the standard: G Test equipment: Salt water…