Q:Physics high school. Why does a spring fall to the lowest point and the acceleration a must be greater than the acceleration of gravity g ah. Seek expert

Is the map tilted?.Look at the picture. It means that a naturally stretched spring is placed vertically and then put a mass of m at zero initial speed.If dropped to the lowest point, the speed of the object v=0, object by the acceleration of gravity g down, if not spring to give it an g greater than or equal to the acceleration, the object will continue to fall, do not conform to the original intention of "low".So the acceleration inside the spring must be greater than or equal to g.

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:What are the categories of springs?

A compression spring is spring under axial pressure, the material section in which are round, rectangular and is also useful multi strand steel rayon coiled spring, generally for pitch, compression spring shapes: cylindrical, conical, convex and concave and a small amount of non circular, will there is a certain gap between the ring and the ring compression spring, when subjected to external load when the spring contraction deformation, deformation energy storage.

Q:What kind of production equipment does spring factory usually have?

Spring testing machines; fatigue testing machines; torsion testing machines; spring tension and compression testing machines

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

You should say that the deformation resistance, spring steel generally high strength, large deformation resistance, generally speaking, stainless steel generally than spring steel deformation easier, and some varieties of stainless steel deformation resistance is also very large

Q:I buy a spring made of 1.2mm steel wire from a hardware store that needs quenching

In general, hot bending spring coil spiral spring and disc spring of hot stamping, preferably in hot forming and quenching by the heat immediately. In this way, the heating and the decarburization degree of the spring can be omitted, and the surface quality of the spring can be improved both economically and at the same time.

Q:How to process Spring Steel

Ha ha, friend,At first I thought it was a springFirst, you want to buy hot, or annealed spring steel, the standard number is GB/1222-2007< more than and 10 grades, including you 65 and 60 Si 2 A> Meng MengI'll probably help you figure it out. There are so many processes1 turning 2 milling machine processing openings 3 heat treatmentWell, I'm going to work, tooI hope my answer is of some use to you

Q:The shop glass spring door is too tight, how to adjust?

If it is the glass door of the ground spring, then call the installation worker to loosen it.

Q:What are the main functions of spring?

There are many kinds of spring, and the spring is mainly divided into four kinds: stretching spring, compression spring, torsion spring and bent spring. If in accordance with the spring shape and can be divided into helical springs, disc springs, ring spring, plate spring, spring etc.. The basic types of springs are listed in the table. Air springs.

Q:Buffer spring buffer for automobile

Rubber buffer also known as buffer, buffer, buffer block, rubber shock absorber, shock absorber rubber and so on, the most correct name is "automobile spring cushion", is the name of Car Spring Buffer Retainer English, 1 luxury cars with a buffer principle significantly improve the damping performance of vehicles.