Tapping on stainless steel is much more difficult than tapping on a common steel. Frequently due to the large torque, the tap is bitten in the screw hole, collapsing or breaking, the surface of the thread is not light, the groove is grooved....
Summary: Thread processing of slender shaft and slender shaft is a common and difficult work piece in mechanical processing. Due to the poor rigidity of the slender shaft, the force generated during turning and the deformation due to heat ar....
The invention relates to a method for performing DRAM wafer testing using a test pin card. Background technique: DRAM has the need to reduce test costs during the testing process. Therefore, the same number of test needle cards is getting hi....
The patented technology of the utility model relates to an intelligent variable frequency electromagnetic heating oil storage tank, which comprises a tank body. The irrigation body is provided with at least one upper transmission liquid coil....
The patented technology of the present invention discloses an oil storage tank having a heating device. It comprises a can body and an electric heater interface arranged side by side on the circumferential surface of the can body, the electr....
Oil tanks play a very important role in the process of oil and gas storage and transportation. In oil and gas storage, oil tanks are mostly used for oil storage. When oil is needed, the oil is discharged from the tank. In the process of oil....
Electrostatic Conductive Coatings for Inner Wall According to GB13348-92 Liquid Safety Regulations for Liquid Petroleum Products. GB15599-95 Safety Regulations for Lightning of Petroleum and Petroleum Facilities, requiring the use of static....
Main type ① Vertical cylindrical vault steel tank. The capacity is generally below 10,000 cubic meters. Wallboard is connected by sleeve type (fillet weld). The inverted method is often used in construction (starting from the top of the ta....
Oil storage tank, referred to as oil tank or storage tank, is a large container with regular shape for storing oil products. According to the construction materials, it can be divided into metal oil tanks and non-metal oil tanks. Most of the....
Test pin, a probe used to test PCBA. The surface is gold plated and the probe has a high performance spring with an average life of 30,000 to 100,000 times. The famous manufacturers abroad are QA, IDI, UC, Semiprobe, ECT, INGUN, BT. Probe ma....