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There are several types of cast iron inspection standards for cast iron gate

Source: admin Release time: 16:09, October 15, 2019 Number of visits: second
Cast iron gate There are several types of cast iron inspection standards:
The vertical plane sliding device is mainly composed of brake frame, gate, suspension seat and tight inclined iron. In order to overcome the shortcomings of the previous steel door corrosion, the door frame and door panel are made of cast iron, and the door frame is composed of upper beam, lower beam, left straight beam and right straight beam. In order to facilitate manufacturing, transportation and installation, the plunger is usually assembled from the upper and lower parts according to its size or height.
The vertical plane sliding device is mainly composed of brake frame, gate, suspension seat and tight inclined iron. In order to overcome the shortcomings of the previous steel door corrosion, the door frame and door panel are made of cast iron, and the door frame is composed of upper beam, lower beam, left straight beam and right straight beam. In order to facilitate manufacturing, transportation and installation, the plunger is usually assembled from the upper and lower parts according to its size or height.
According to the shape of the door, the door is divided into two types: PZ plate and PGZ arch. The specific selection can be comprehensively compared and determined according to the size of gate hole, indenter, opening and closing type and gate weight.
According to the combination of gate structure, the gate is divided into two types: integral type and assembled type. The small gate is usually made into one piece, but the gate at the construction installation point with poor mechanical installation conditions can also be assembled to facilitate manual transportation. Gates of medium size and above can usually be assembled.
1. Dimensional inspection: check whether the casting size meets the requirements of the part drawing, and whether the dimensional accuracy of the working surface can meet the assembly and use requirements;
2. Appearance inspection: the surface of casting is not allowed to clean sand and debris without cleaning;
3. Casting defects: the surface of cast iron gate is not allowed to appear such as shrinkage, shrinkage, porosity, cracks, skin seams and lack of meat and other defects or phenomena;
4. Performance report: mechanical properties (including tensile strength, yield strength, elongation, hardness, pressure index or necessary low temperature performance test)
5. Chemical inspection: provide chemical composition report to check whether the chemical composition is designed according to the target component;
6. Metallographic report: spheroidizing rate and grade of cast iron gate.
Cast iron gates are usually equipped with manual or electric screw hoists, which are used to open and close the gates. Cast iron doors are usually equipped with adjustable wedge-shaped devices. Wedge pairs are respectively arranged on the door body and the door frame. Through adjusting wedge device, the cast iron gate can make the gate body close to the door frame when the gate is closed, so as to achieve the water stop effect.

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