Large-scale castings generally have complex shapes and components, with complex internal cavity structures. The inspection requirements are generally based on the corresponding national standards, ministerial standards or industry standards for large casting. The technical agreement can also on account of the technical requirements negotiated in the order contract. Probably according to the technical requirements of the design drawings or technical contracts.
The inspection of large castings includes: dimensional inspection, visual inspection of the surface quality of shape and appearance. In order to ensure product quality, we should do chemical composition analysis and mechanical performance tests. Besides, we also need to conduct non-destructive inspections on large castings. For the inspection of the internal quality of castings, we should take non-destructive testing methods.
What aspects does the non-destructive inspection of large castings include?
1. Magnetic particle inspection
We should carry out magnetic particle inspection on all the interiors and surfaces of large castings
2. Liquid penetrating flaw detection inspection
At the same time, we should take liquid penetrating flaw detection on all the interior and surface of large castings.
3. full X-ray filming
Require 100% full X-ray filming for large castings.
4. If the product specification stipulates the requirements of non-destructive testing, it shall be carried out in accordance with the provisions of the corresponding specification. The structure of large castings must ensure quality and simplify the process. The structure of large castings cannot be easily modified. If modification is required, it should be explained to the product designer.
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If you are looking for an excellent large grey iron castings and ductile castings, Yide casting is a good choice for your casting parts manufacturing. Please feel free to contact us for more details.
Cast Copper Worn Gear
The worm gear reducer is a power transmission mechanism that uses a gear speed converter to reduce the number of revolutions of the motor (motor) to the required number of revolutions and obtain a larger torque.
The mechanical deceleration device that has been widely used in the production process equipment of various industries has been well received by users. It is also the best choice for modern industrial equipment to achieve large torque, high speed ratio, low noise, and high stability mechanical deceleration transmission control device.
Cast Iron Box
The cast iron box is mainly used for the inspection of the parallelism and perpendicularity of the parts and supports the workpiece during scribing. It is generally a cube or cuboid with the same side length. Various specifications and contour boxes and rectangular tubes can be made according to user requirements.
The cast iron box is manufactured according to JB/T3411.56-99 standard, and the material is HT200.
Ductile Cast Iron Hydraulic Distributor
The hydraulic distributor is made of ductile cast iron HT700-2. Ductile cast iron—also referred to as spheroidal or nodular iron—is actually a group of irons that exhibit high strength, flexibility, durability, and elasticity due to their unique microstructure. Ductile cast iron normally contains over 3 percent carbon; it can be bent, twisted, or deformed without fracturing. Its mechanical properties are similar to steel, and far exceed those of standard cast irons.
Ductile Cast Iron Rope Guide
The new ductile iron rope guide has good toughness, high wear resistance, anti-inclined pull, adjustable gap, universal size and wide adaptability. The The ductile iron rope guide can cooperate with both steel reel and cast iron reel, and the gap can be adjusted according to the reel.
Iron Casting Construction Product
This Rebar Coupler cast iron sleeve part is made of QT550-5 material, with BH160-22 Brinell hardness, the weight of this iron casting part is about 1-10kg. And this ductile cast iron pipe repair sleeve is applied in house building. If you want iron casting parts, you can send design drawings to Yide casting for this similar ductile cast iron item.
JM Cast Iron Flap Valve
The cast iron flap valve is a one-way valve, and mainly installed at the end of the drainage pipe to prevent the ingress of outside water. It has the functions of automatic opening and closing. When the tide level of the river is higher than the outlet pipe and the pressure is greater than the pressure in the pipe, the flap valve panel is automatically closed to prevent the river tide from flowing back into the drainage pipe.
JM Cast Iron Gate
Cast iron gates are mainly used in water drainage, flood prevention, irrigation, water conservancy, and hydropower projects. The cast iron water gate is used to cut off and dredge the water flow or adjust the water level.This series of cast iron gates can be divided into two types: SFZ square and SYZ round; and designed and produced according to the general standards of the Ministry of Construction and the American AWWA standard.