What kind of grinding wheel is used for linear guide rail, which is not easy to heat and deform

:What process can be used to ensure that there is no deformation in the process of linear guide manufacturing? It should be determined according to the form.

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Replace the grinding wheel, the size of the porosity of the grinding wheel, the quality of heat dissipation have a direct relationship, the grinding wheel with small porosity is easy to cause the grinding wheel to block the burning knife, the heat dissipation is not good in the grinding process, it is easy to lead to the deformation of the workpiece, Japan Tieken HW-46 This grinding wheel can just be this problem.

What kind of grinding wheel is not easy to heat and deform with linear guide, you can use that kind of angle grinder, and then replace it with a grinding wheel saw blade, so that it is more durable when sending heat.

The method of grinding the grinding wheel for the linear guide rail] is selected according to the material of the linear guide rail, and the specific selection method is as follows:

1. Material selection: the linear guide material is generally cemented carbide, so the grinding wheel (cubic boron nitride) with high hard abrasive material should be generally used, which is second only to diamond, with good wear resistance and conductivity, low calorific value, and is mainly used for grinding cemented carbide, stainless steel, high alloy steel and other difficult-to-machine materials.

2. Selection of grinding wheel abrasive particle size: Since the linear guide rail is generally fine grinding, the allowance is small, and the roughness value is low, so the grinding wheel with finer abrasive particles can be selected.

3. Selection of grinding wheel hardness: In order to ensure grinding accuracy and roughness, a slightly hard grinding wheel should be selected during fine grinding. When the thermal conductivity of the workpiece material is poor, and it is easy to produce burns and cracks (such as grinding cemented carbide, etc.), the grinding wheel should be softer.

Therefore, the grinding wheel (cubic boron nitride) of high hard abrasive material should be generally used, which is second only to diamond in hardness, good wear resistance and conductivity, and low calorific value, and is mainly used for grinding cemented carbide, stainless steel, high alloy steel and other difficult machining.

What kind of three wheels are easy to deform? Mainly among your demons, you have to add water, don't take too long, the deformation will be worse.

1.Pay attention to the study of the "three basics", which are basic concepts, basic formulas, and basic theories.

2.Grasp the key points and derive the formula yourself.

3.Do more exercises and learn how to solve problems. Many things can only be learned by solving problems, and if you don't solve problems, you can't master physical chemistry.

4.Self-study before class, listen carefully in class, take notes, review after class, be diligent in thinking, and cultivate the ability to self-study and work independently.

5.Pay attention to experiments, and regard laboratory classes as an important part of improving your own ability and ability to work independently.

6.Do the homework yourself and do it independently - after you finish the homework, take a few minutes to review the formulas used in the homework.

It is not high, physical chemistry involves a wide range of aspects, and the knowledge involving physics is also some basic knowledge, or it still requires the understanding of some concepts and the explanation of some phenomena. Understanding is more important, and I personally think that physical chemistry is still relatively interesting and a basic subject. There are also some requirements for mathematics, mainly calculus, but the requirements are not high, and if you want to study structural chemistry, the mathematics requirements are relatively high.

The requirements for high numbers are high, but the requirements for physics are not high.

It mainly involves structural physics, atomic physics and nuclear physics, and the other mechanics and electricity are not related.

Physical chemistry should be considered chemistry. The main thing is that I am biased towards the knowledge of chemistry. In fact, the names of many disciplines do not mean literally.

There are many things in this world that are very helpless, just like someone brushing the level on the Internet. As the saying goes, the forest is big and there are all kinds of birds, and now there are female teachers in the school who beat people? Do you believe it?

Physical chemistry is the study of chemical reaction processes from the perspective of physics, and the research content can be roughly summarized into three aspects:

Macroscopic equilibrium properties of chemical systems Based on the three fundamental laws of thermodynamics, the equilibrium physicochemical properties and regularity of macroscopic chemical systems in gaseous, liquid, solid, dissolved and highly dispersed states are studied. In this case, time is not a variable. The sub-disciplines of physical chemistry that fall under this umbrella include chemical thermodynamics.

Solution, colloidal and surface chemistry. Microstructure and properties of chemical systems Based on quantum theory, the structure of atoms and molecules, the spatial structure of atoms and molecules in the bulk phase of objects, the structure of surface phases, and the regularity of structure and physical properties are studied. The sub-disciplines of physical chemistry that fall into this area are structural chemistry and quantum chemistry.

Dynamic properties of chemical systems The rate and mechanism of chemical change processes that occur in a system due to the perturbation of chemical or physical factors are studied. In this case, time is an important variable. The sub-disciplines of physical chemistry that fall under this category are chemical kinetics, catalysis, photochemistry and electrochemistry.

Physics and chemistry have nothing to do with each other.

But the relationship between mathematics and physics is the relationship between life and death. (Except for a few chapters that don't use much mathematics, such as the state of matter.) ）

Therefore, it cannot be said that if you learn physics well, you can learn chemistry well.

There are connections between various subjects, the relationship between physics and chemistry is greater, and learning physics well means that you have the ability to learn chemistry well, because chemistry is simpler and easy to understand, but whether you can learn well is another problem.

Chemistry requires a lot of knowledge points to memorize, some principles are easy to understand but not easy to get points, chemistry is very similar to liberal arts.

Good physics has some help in chemistry, such as molecular motion, etc. But at the middle school level, it didn't matter too much.

Physics is the study of the physical changes in matter (no new matter is produced, i.e. no new molecules are produced).

Chemistry is the study of chemical changes in matter (the formation of new substances, i.e., the breakdown of molecules into atoms and the reformation of new molecules).

Chemistry and physics are both sciences and are closely related to each other, for example, the composition of the battery is a general chemical problem, but the use is a physical problem, and for example, the change of chemical composition will lead to a significant change in the physical characteristics of an item, as long as the meaning of "from quantitative change to qualitative change" is clarified, it should not be difficult to understand. Nowadays, scientific and technological progress has made various disciplines penetrate each other, and the connections between professions are extensive.

In some universities, chemistry departments have physical chemistry majors, which use physical methods to solve chemical problems; In the Department of Physics, there is a major in Chemical Physics, which uses chemical methods to solve problems in physics. The relationship between chemistry and physics is actually very close and mutually reinforcing. Nowadays, more and more instruments in the laboratory are used to detect chemical composition, and the adjustment of chemical composition directly affects the physical properties.

Some people say it's physics, and when I ask why, it's all basic subjects, but the level of foundation is different. The first theoretical course in chemistry is physical chemistry (including structural chemistry), which takes thermodynamics, statistical mechanics, and quantum mechanics as the theoretical basis of chemistry. The first theoretical course in biology is biochemistry.

Even within physics, there are basic levels, the most basic of which is the study of particle physics, string theory, and so on, which are the first problems in philosophy, the question of the origin of matter, which is a really big problem.

It seems that the most basic thing in physics is mathematics.

With chemical change, then the physical change is simple, and the physical change is not produced when various substances are together. The microscopic explanations of chemical reactions are all physical. Even the nature of chemical reactions can be explained by physical phenomena.