The elliptical head plays an important role. Therefore, the inspection and non-destructive testing of elliptical heads are also one of the inspection standards. The elliptical head should undergo the following inspections: 1) Generally, regarding the external dimensions, minimum forming thickness and non-destructive testing of the head, they should be inspected and re-inspected in accordance with the regulations and relevant standards to ensure the overall quality of the head. When the inclination of the straight edge of this head is stopped from being measured, the thickened part of the straight edge should not be taken into account. 3) After trimming, the roundness tolerance should be measured. Generally, it is the difference between the maximum and minimum values, and the numerical value should not exceed 25mm. A ruler or a tensioned steel wire should be placed at any two diameter positions on the end face of the head to measure the total depth. Generally, it should not exceed the specified value. 4) Use the gap template to check the shape tolerance of the inner and outer surfaces of the elliptical head. Pay attention that the template should be perpendicular to the surface to be measured during the inspection; otherwise, the result may be inaccurate. 5) Longitudinal wrinkles are not allowed on the straight edge of the elliptical head. 6) The minimum thickness of the common head should not be less than the negative deviation of the nominal thickness of the head minus the thickness of the steel plate. For all the splicing or welding parts of the elliptical heads, radiographic or ultrasonic testing should be carried out in accordance with certain methods. In addition, non-destructive testing can also be conducted on some parts, including the welding joints of the transition sections, which must not come loose or leak.

　　Wuxi Meibang Forging & Pressing Co., Ltd. is a specialized manufacturer of metal forming, cold and hot processing. Its main equipment includes 15000KN, 3500KN, and 3150KN double-acting hydraulic presses, as well as 15M3, 3M, and 6.5M head cold spinning machines and fuel oil heating furnaces. 10T bridge crane, producing large cold and hot processing stamping parts, head specifications Di89-6500mm, flange S1525-S5063. It is your ideal partner.

　　Only high-quality employees can create high-quality products. The engineering and technical personnel account for 20% of the total number of employees in the entire factory. In recent years, we have been fully committed to exploring and developing a large number of various stamping products. The production processes include: blanking, bending, stretching, necking, forming, bulging, and hole flipping, etc. Processing thickness <" 60MM, materials include low-carbon steel, stainless steel, copper, aluminum, titanium and various composite materials. The product implements a one-stop responsibility system service from mold design to factory delivery.