On September 12, Chinese Industry Federation and Commerce announnced the list of "2023 Chinese Top 500 Private Enterprises" and "2023 Chinese Top 500 Private Manufacturing Enterprises" , Hongwang Holding Group ranked 230th and 157th respectively.

304 stainless steel is an austenitic stainless steel containing 18% chromium and 8% nickel. Due to its excellent corrosion resistance, high ductility and low cost, it is the most widely used type of stainless steel. This alloy is non-magnetic and has good weldability and formability. The "304" in its name refers to its composition; It contains at least 18% chromium and 8% nickel.

With the continuous expansion of China's electrical steel production capacity and the rapid development of downstream demand markets, China's electrical steel production is also increasing year by year. According to the data, in 2021, China's electrical steel production reached 13.1828 million tons, an increase of 17.9%. From the perspective of production structure.

Transformer demand is high, and the volume is increasing. On the demand side, the total purchase of power transmission and transformation within the network increased greatly, and the total bid of the first two batches of transformers reached 7.41 billion yuan, a year-on-year increase of 68.4%.

First turn on the power switch, check whether the voltage, current and meter of the electric cabinet are normal, set the initial temperature of the temperature control meter to 400C, check whether the current of the power meter is consistent, after ensuring that the adjustment is consistent, turn on the heating switch for heating. Check whether the electric room instrument is normal or not, and adjust the power of the smoke furnace.

Stainless steel surface cleaning, pickling and passivation, in addition to maximizing corrosion resistance, but also to prevent product pollution and obtain aesthetic effects. In the GBl50-1998 "Steel pressure vessel", the surface of the container made of stainless steel and composite steel plate with anti-corrosion requirements should be pickled and passivated.

The upstream of the electrical steel industry chain is the raw material link, mainly including iron ore, pig iron, coal, etc. The middle reaches are electrical steel production and supply links; Downstream is mainly used in household appliances, new energy vehicles, electricity, electronics and other fields.

Commonly used motor iron core is generally made of electrical steel sheet. electrical steel is a kind of silicon steel. The iron core of the transformer made of electrical steel is because electrical steel itself is a magnetic substance with strong magnetic permeability. In the energized coil, it can have a large magnetic induction intensity, so as to reduce the volume of the transformer.