1. Technical parameters and explanation:

1). The hardness of cemented carbide ring and alloy liner made by our company reaches HRA ≥85 ° , bending strength ≥2800 mpa, triangular liner is adopted in the middle of the spectacle plate, and the stability is good; The utility model has the advantages of high strength, strong impact resistance, compact structure, good adhesion performance and High Square Index.

2). The Weld seam is 1-2mm, the width of the whole alloy ring is 15-17mm, the thickness is 6-8mm, the width of the patchwork alloy ring is 18-19mm, the thickness is 6-8mm, the thickness of the lining plate is 5-6mm.

3). S valve is soldered firmly by twice annealing treatment, the coaxiality is not more than 0.1 mm, the thickness of chrome plating on steel sleeve is 0.2 mm-0.4 mm.

2. Quality test standard and test means:

1). Each batch of alloy is produced according to the process strictly, and the hardness and strength are tested.

2). The outer dimension, parallelism, flatness and screw hole distance of glasses plate and cutting ring can meet the requirement of drawing.

3). Use instrument to check alloy thickness, welding position, coaxial degree of s valve, chrome plating thickness.

3. S valve, glasses plate, cutting ring manufacturing, testing strictly in accordance with the relevant provisions:

1). The company's technical departments according to the buyer to provide drawings, preparation process drawings strictly in accordance with the process requirements of production.

2). Adopt special technical measures in manufacturing to ensure the quality of glasses plate, cutting ring, S valve and other products meet the requirements of the drawings.

3). The company's products to implement three-level inspection system, to 100% pass rate factory.

4. After-sales service commitment:

1). Cemented Carbide 1 the company's production of cemented carbide glasses plate, alloy cutting ring, in the concrete pump (car) vertical height of 100 meters or less than 200 meters from the horizontal distance, the finished cube of alloy glasses plate is 25 ~ 30000 m 3, and the finished cube of alloy cutting ring is 12 ~ 15000 m 3. 2 three months occurred off the lining board replacement. 3 the alloy ring fracture occurred in 3 months (without artificial).

2). The S valve assembly produced by our company has a finished capacity of 4 ~ 50000 m 3 or more.