Overview
| brand | Cantonese snail | Nominal diameter | eight |
| length | thirty | material quality | Carbon steel grade 12.9 |
| Applicable scope | Fasteners for molds | producing area | Guangzhou |
| colour | white | Functional purpose | |
| Packaging specifications | one thousand and three hundred | model | M8 * 30 |
| Customized or not | no | Order number | Yue Luo-132 6870 6820-14677 |
| Standard type | European Standard | Delivery time | Within 36 hours |
| Performance level | Level 5.8 | Material grade | Stainless steel A450 |
Product Details
"Standard Spring Washers (GB/T93-1987)
Lightweight spring washers (GB/T859-1987)
Heavy duty spring washers (GB/T7244-1987), also known as spring washers.
Saddle Spring Washers (GB/T 7245-1987)
Saddle Spring Washers (GB/T 860-1987)
Waveform Spring Washers (GB/T 7246-1987)
Waveform Elastic Washers (GB/T 955-1987)"
Today's advanced manufacturing represented by large aircraft, large power generation equipment, automobiles, high-speed trains, large ships, and large complete sets of equipment has entered an important development direction. As a result, fasteners will enter an important stage of development. High strength bolts are used for the connection of important machinery, and repeated disassembly or various installation torque methods require extremely high requirements for high strength bolts. Therefore, the quality of its surface condition and thread accuracy will directly affect the service life and safety of the host. In order to improve the friction coefficient and avoid rusting, seizing, or jamming during use, the technical requirements stipulate that the surface should be treated with nickel phosphorus plating. The coating thickness should be ensured to be within the range of 0.02~0.03mm, with uniform, dense, and no pinholes.
"Traditional gaskets are single piece gaskets that work independently, and this type of gasket mainly relies on friction to achieve anti loosening effect.
The new gasket is composed of two pieces, and its unique embedded structure changes the way traditional gaskets mainly achieve anti loosening through friction. Instead, it adopts the most advanced anti loosening technology in the world, utilizing the tension between the two gaskets to achieve a dual effect of anti loosening and tightening"
"1. Firstly, remove the sludge on the surface of the broken screw head and use a center punch to punch the center of the section. Then, use an electric drill to install a drill bit with a diameter of 6-8 millimeters to drill the hole at the center of the section. Be sure to drill the hole thoroughly. After drilling through the hole, remove the small drill bit and replace it with a drill bit with a diameter of 16 millimeters. Continue to expand and drill through the broken bolt hole.
2. Take welding rods with a diameter of less than 3.2 millimeters and use a small and medium current to weld the entire length of the broken bolt from inside out in the drilling hole of the broken bolt. At the beginning of the welding process, the arc should not be too long to avoid burning through the outer wall of the broken bolt. After welding to the upper end face of the broken bolt, continue to weld a cylinder with a diameter of 14-16 millimeters and a height of 8-10 millimeters.
3. After the welding is completed, use a hammer to strike the end face of the broken bolt to cause vibration along its axis. Due to the heat generated by the previous arc and subsequent cooling, combined with the vibration at this time, the thread between the broken bolt and the body will become loose.
4. Carefully observe and when a small amount of rust is found to leak out from the fracture after striking, you can take the M18 nut and cover it on the welded column head and weld the two together.
5. After welding, cool slightly and use a ring wrench to cover the nut while it is hot. Twist it back and forth, or use a small hammer to tap the end face of the nut to remove the broken bolt.
6. After removing the broken bolts, use a suitable tap to process the threads inside the frame once to remove rust and other debris from the holes"
Alloy steel nuts, hexagonal nuts (GB6170/DIN934, GB6175), flange nuts (GB6177/DIN6923), round nuts (GB812), small round nuts (GB810), American square nuts, American hexagonal nuts (NI/MEB18.2.2), heavy nuts (metric, American). Specification: 5/16-4 ^ ^. Nut specification editing: The nut specification table is a specific and detailed way to unify various types of nuts and subdivide some specifications of nuts using a table. There are many types of nuts, as well as nuts of different materials. Each type of nut has different specifications, and each type of screw also has its own mechanical properties and functions.
