• April 09, 2021

Gravity casting refers to the process of injecting molten metal into a mold under the action of the earth's gravity, also known as casting. The generalized gravity casting includes sand casting, metal casting, investment casting, lost foam casting, mud casting, etc.; the narrow gravity casting specifically refers to metal casting. The molten metal is generally poured into the gate manually, and th...

• June 03, 2021

At present, more than 80% of copper in the world is made by fire method, and it is mainly used to process copper sulfide ore. Pyrometallurgy is to melt copper ore (or calcine, agglomerate, etc.) and flux at high temperature, or directly smelt into blister copper, or first smelt into matte (melt mainly composed of copper, iron and sulfur) Then smelt into blister copper. Except for some operations (...

• June 30, 2021

When buying a single-handle basin faucet, you should pay attention to the diameter of the spout. Most of the water in the market belongs to the hard pipe, so you should pay attention to the height of the upper spout. It is most suitable to go down from the basin to 35 work points. During installation, a special angle valve must be selected, and the angle valve must be fixed to the hot and cold wat...

• July 07, 2021

Brass is a copper alloy with zinc as the main alloying element. According to its chemical composition, brass is divided into two types: ordinary copper and special brass. (1)Ordinary brass is a binary alloy of copper and zinc. Due to its good plasticity, it is suitable for manufacturing plates, bars, wires, pipes and deep-drawn parts, such as condenser tubes, radiator tubes, and mechanical and ele...

• August 24, 2021

SS304 is better. There are several reasons below that: 1.The hardness of stainless steel faucet is higher than that of all-copper. The service life of stainless steel faucet is longer than that of all-copper faucet. It does not need to change the faucet frequently, which is more environmentally friendly. 2.Stainless steel faucets do not contain lead, are resistant to acid and alkali, and are not e...

• August 26, 2021

The fire sprinkler system is a kind of fire extinguishing device, and it is a kind of fixed fire protection facility that is widely used. It has the characteristics of low price and high fire extinguishing efficiency. According to different functions, it can be divided into two forms: manual control and automatic control. The system is equipped with an alarm device, which can automatically send an...

• October 19, 2021

50kg Ball Sand Mixer is a small-sized spherical sand mixing device with a spherical rotating throwing and falling back type. It is used for gravity casting or mixing of small and large batches of core sand. Its working principle is to quickly mix quartz sand, curing agent, and resin into casting core sand. Through the core-making equipment, high-quality sand cores with smooth surface, small gas ge...

• April 13, 2022

A calender is composed of two or more rollers arranged in a certain form, under a certain temperature, the rubber or plastic is pressed and stretched into a film of a certain thickness and surface shape, and can be used for fiber curtain canvas or Machinery for hanging glue on steel cord. The calender can be divided into two-roller, three-roller, four-roller and five-roller calender according to t...