Q:Want to practice how to use pectoral muscle spring expander

Spring cable name chest expander, mainly in order to exercise chest muscle and design. Of course, spring also can assist in other parts of the exercise chest muscle.General situation, you can consider four groups per day, each group of fifteen can, this can be based on their own ability to carry out, proper exercise can be, it is necessary to adhere to exercise will be effective.

Q:What is an independent bagged spring?

The characteristics of independent bagged springs is independent bagged spring each spring can be independent of support, stretching alone, completely conform to the body curve, so that all parts of the body are the best care, with ergonomic, closely supporting effect. Spring tube respectively operation, a force, not elsewhere, even if the pillow was over, it will not affect the sleeping of another, especially by adding a layer of high elastic cotton blanket and wave type sponge bed, bump by using body wave sponge flip natural movement to achieve the massage and health care enjoy the ultimate role of sleep.

Q:How should we choose the spring material?

The selection of spring materials shall be determined according to the nature of the load, stress state, stress magnitude, working temperature, working environment and service period of the spring.

Q:Stainless steel and spring steel hardness, who is hard?

To sell the spring steel where seen relatively hard two pliers are very difficult to open

Q:In short, in vibration and wave, it is not easy to make mistakes when we grasp the difference and relationship between "displacement" and "displacement relative to the balance position"

In short, in vibration and wave, it is not easy to make mistakes when we grasp the difference and relationship between "displacement" and "displacement relative to the balance position"

Q:Hydraulic diagram of the one-way valve has two kinds of drawing, with a spring, without a spring, what is the difference between automatic reset function is not? Without a spring, it will not be repeated

Most of the one-way valves are springs, but the springs are usually soft and the flow resistance can be neglected. Normally, a one-way valve with a pressure of more than 0.3 MPa draws a spring mark on the hydraulic schematic.

Q:The glass door spring is broken. How much would it cost to change it?

The price of the spring itself is about 200-800, plus part of the labor cost. After all, it's very expensive. There are about 150 of the spring, but the quality is not good, or safety first. Labor costs are probably about 120. Specific prices should be based on your actual situation, you and the master speak.

Q:Is spring steel manganese steel?

Manganese steel and spring steel are the names produced under different classifications. The spring steel is classified from its use, and manganese steel is classified from its constituents. Spring steel also contains manganese, which is a kind of manganese steel.

Q:Buffer spring buffer for automobile

The automobile spring buffer (cushion glue) is a kind of rubber product with high elasticity and high tenacity. It belongs to the automobile refitting parts. The utility model is used for installing the spiral spring of an automobile suspension system, and mainly acts as a buffer shock absorber and protects the shock absorber. This function is a physical function.The buffer is made of an open circular ring with a groove (for holding a coil spring), with two, three or more holes on each side. According to the standard specification of the spring spacing, the buffer rubber is divided into seven standard models: A+A, A, B, C, D, E and F. In theory, these seven models can cover the world's largest part of the spiral spring shock absorbers required.

Q:Cold rolled coil spring spring and difference "

Difference: the main annealing time is different. In the production process, is the first volume of coil spring and annealing, and spring is the first cold roll annealing, and then roll. Similar to cold rolling and hot rolling of steel.Note: spring making methodProduction method of cold rolled coil spring: to stress annealing, end surface grinding, (blast), (the whole school), (BKS), standing or forcing treatment, surface inspection and treatment.Production method of coil spring: blanking, end processing (rolled or forged flat), heating, coiling, quenching, tempering, grinding end to compression to (load test), shot peening (cleaning), coating.