Qingdao xinyuanzhu Group Co., Ltd.

Cast iron tweezers are also well covers, well covers are divided into: cast iron, ball-ink cast iron, bronze well cover

Ball-ink cast iron well cover is mainly made of ball-ink cast iron well cover, the quality of this well cover is involved in the problem of ball rate. Ball ink cast iron well cover has an advantage, is because of the ball ink cast iron strength is high, good toughness, so that ball ink cast well cover than the same type of gray mouth cast iron well cover about 30% lighter.
It also has:
1. Good toughness. The impact value is similar to that of medium carbon steel, more than 10 times that of gray iron.
2. Strong corrosion resistance. Spray corrosion test, 90 days of corrosion is only 1/40 of the steel pipe, is 1/10 of the gray iron pipe. The service life is 2 times that of a gray iron pipe and 5 times that of a normal steel pipe.
3. Good plasticity. The elongation ≥ 7%, which is similar to that of high carbon steel, while the elongation rate of gray iron material is zero.
4. High strength. Anti-pull strength ≥ 420MPa, yield strength≥300MPa, the same as low-carbon steel, three times the gray iron material.

Because of the spball graphite microstructure of splatite cast iron, ball-ink cast iron is better than cast steel in reducing vibration ability, so it is more beneficial to reduce stress. An important reason for choosing ball-ink cast iron is that ball-ink cast iron is less expensive than cast steel. The low cost of ball-ink cast iron makes this material more popular, more efficient casting, and reduces the machining cost of ball-ink cast iron.