Fasteners standard (DIN German standard, GB GB, ASME / IFI / ANSI American standard, Q standard, PEM standard, JB standard mechanical department, EN European standard, ISO international standard, JIS

1, the use of high-strength materials; for 3-45 tonnage of various models; 2, the use of hydraulic control check valve safety devices to ensure safety; 3, excavator configuration parts without modifi

When using the connector, the correct use and preservation, will avoid unnecessary trouble. When we receive the connector, we have to carefully observe the packaging to see if there are obvious damag

There are too many types of connectors, making it difficult to distinguish between them, connectors, terminal blocks, connectors, etc. Today I will introduce their applications. The electrical connec

A resonator is an electronic component that produces a resonant frequency. Resonators are commonly divided into quartz crystal resonators and ceramic resonators. The resonator has the function of gen

As shown in Figure 1, there is a 30 ° wedge-shaped inclined surface at the bottom of the female thread. When the bolt and nut are tightened to each other, the tip of the bolt is firmly pressed again

The threaded fasteners we currently use are either anti-loosening or self-locking. Some are originally lock nuts, but they are said to be self-locking nuts. So how to distinguish and distinguish? 1.

Generally, the nut will loosen due to some other reasons such as vibration during use. In order to prevent this phenomenon, a self-locking nut was invented. The function of self-locking nut is mainly

The self-tapping screws thread is relatively sharp. It can be rotated to eat into the smaller screw hole. The thread in the hole is developed by cutting and extrusion. The friction between the materi

1. The concept of distinguishing between connectors, terminals and connectors: 1. Connector, also called connector connector. It is a component often contacted by electronic engineering technicians.

Each device has a maximum power limit, whether it is an active device (such as an amplifier) or a passive device (such as a cable or filter). Understanding how power flows in these devices helps to h

The automobile production line is a production line for automobile operations. Its operation line procedures include welding, stamping, painting, powertrain and so on. To improve the automation level