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The difference between the castings and the forgings of a gear

Gear forging is usually made of steel heated to austenite state, and then pressed by mould, and the parts formed by external force forging are formed. The casting has some defects, such as segregation, shrinkage, porosity and so on. Taking gear forgings as an example, iron and steel after forging can retain metal flow linearly, which can significantly improve the mechanical properties of metal materials.
First, the mechanical performance difference, after two processing of the forging, there will be a hardening process, this process will lead to fine arrangement, mechanical properties without direction, superior to the casting;
Two. The molding method difference castings are melted through the melting furnace, pouring into the model and cooling, and the forging is made up of repeated restrictions under the pressure effect.
A. casting parts consist of direct casting of molten steel with poor grain size, low metal density and poor mechanical properties.
Gear forging: cast by high temperature forging, grain size is fine, density is slightly higher, mechanical performance is stable.
B. from the non processing appearance survey: the casting pieces are small granular, can see the slit (casting grinding gear); free forging, the appearance of the appearance after the black, the appearance of a slightly flaky appearance, can see the cast fold; die forging, at first glance, a bit similar to the casting, but the appearance of the granular is still relatively delicate. And die forging is often done in small parts, big components difficult to do.
C. from the processing surface: cast iron is a significant difference from the forgings. The cast iron has no gloss (after grinding is still bright). The chips of the chips are all broken chips, and the gray cast iron will have powder like chips. The cast steel processing surface and the forgings are not very different and have glossiness.
Gear forging has no molding defects such as shrinkage holes, so forgings are better than mechanical castings. The advantage of the casting is the convenience of producing and forming. The fine mechanical properties of the scale are not high enough to be formed at one time. It is mainly about the difference of molding methods.
Judging from the appearance, it can be seen that the surface of the casting is thicker, and there are segregation and shrinkage holes, while the surface of the gear forging is smooth and glossy. Because the gear forging is forged by external force, and the casting is solidified.

Types, characteristics and scope of application of wind valves

In the air supply (return) air duct system, the main function of the control valve is to control (open or close) and regulate the air volume. There are many kinds of control valves, which are usually closed to open multi leaf regulating valve, butterfly valve, three way regulating valve and plug-in valve.
1. Open closed multi leaf regulating valve
There are two types of breakable motion and electric power, because of the use of the open blade, the air flow is more uniform, and the manual connecting rod drives the blade to rotate, adjusting the flow through the air flow, at the same time, it can be completely closed so that the air flow can not be passed. Because the edge of the blade is embedded with a sealant strip, it can ensure its tightness when closed, and has the advantages of small resistance, small air leakage and so on. The multi leaf regulating valve is installed on the main air duct and the branch duct. The electric multi leaf regulating valve is installed an electric actuator on the driving spindle of the regulating valve to connect the power supply and adjust the position of its actuator, so that it can rotate clockwise and counter clockwise, and drive the valve leaves connected to the spindle to open and close. When you press the manual unloading button on the actuator, the manual control valve leaves can also be fully closed to full open position. The multi – leaf regulating valve with electric actuator is installed at the inlet of the new fan in the air conditioning of the precision machine room. The power line is connected with the motor of the inner fan of the unit, that is, the new wind pipe valve is also closed at the same time after the fan is stopped. In winter, the cold air will be avoided because the cold air of the new fan stops into the freezing heat exchanger. At the same time, after the fire in the building, the fire control device automatically cuts off the power supply of the fan and prevents the air from entering the air duct. The multi leaf regulating valve has many specifications, and is generally installed on the air duct, which is the same size as the cross section of the air duct. When the manual multi leaf regulating valve is used to adjust the air volume, the blade is adjusted to a certain angle, and then locked by a locking nut. Electric actuator should be selected with small volume, large torque, high control precision, high reliability and easy installation.
2, butterfly valve
The butterfly valve is simple in construction and convenient to operate. It plays the role of opening or regulating the air volume, but it opens the resistance of more leaves and is generally installed in the air duct of the air conditioning of the precision machine room. According to the structural form, there are two types of butterfly valves: zipper type and handle type.
3, three control valve
The three – way regulating valve is mainly used in rectangle straight three pipe or trouser pipe, which can adjust the air volume of the branch pipe, and the three – way regulating valve has two types of handle type and pull rod type.
4, plugged valve
The plug-in valve is mostly used in the outlet of centrifugal fan as the starting point of the fan, also known as the plug-in starting valve. Because of the large opening resistance, the plug-in valve is seldom used in the ventilating and air conditioning pipeline.

Once a man is lazy, it is really terrible

People really need to live on their own consciousness. Lazy people are really terrible. How can we change their laziness? It still depends on your own consciousness to change yourself. It is common for everyone to be lazy and steal laziness at work. I am no exception. Today, I write this article mainly to correct my lazy behavior. Business friends can also give me some advice, so that I can get rid of the pain of laziness as soon as possible. Thank you!

The first thing to say is how a lazy way, one day’s work, that is to the computer and mobile phone, from work to work, the eyes will not leave the size of the screen, to the computer is a good job, but sometimes do not want to operate, even lazy to update, release, promotion, is this every day, this is this Like this, it may feel like this job has been done for a long time, and I feel bored and unwilling to do it. All right, watch the news with your cell phone, watch the jitter, lazy to such a degree.

I also know that I have become lazy, and want to change, but is this laziness come up and can not be controlled. I think I’m about to die.  Blue

Now I can only write articles to get rid of laziness, I feel that I have not written for a long time. Now I write about myself. I hope to remind myself, remind myself, keep reminding myself, to get rid of laziness and not to get mixed up. Come on

This is my own experience. Laziness is very terrible. Laziness makes you lose everything, but it loses a lot. Cheer yourself up. Get rid of laziness and start from now!

Status of automation industry

Under the slogan of “2025 of China’s manufacturing industry and 4 of China’s manufacturing industry”, the automation industry is thriving and thriving. You are embarrassed to say that you are mixed up in the industry with a business transformation, a personal venture, a cross-border robbery, a government support,, a, or a manufacturing industry without a point of automation.
Source: industrial robot training
Is the current situation of this industry in China so prosperous, I feel a lot of feeling in this industry for more than 10 years, from abroad to domestic, from foreign enterprises to private enterprises, from grass-roots to management, from industry to education, and feel much more feeling, without emotion, not attacking, not playing indignant youth, only talking about facts.
First of all, there is no doubt that this industry has the future and the way of money. It is the only way for industrial development and has great potential. But… ..
We all know that the ultimate purpose of the enterprise is to make money, and that the enterprise that does not make money for the purpose of making money is X. Mr. Ma Yun once said that it is immoral to make a business without making money. (see people speak more elegance!) But how to make money!
In fact, it is also simple. First, the market is the two product, the three is the price, the four is the delivery period, and the five is the service.
1. Market
As a friend of the industry, it is necessary to set up its own position. Automation is not essential in essence, because human ability is too great and the automation can be done by manpower. When there was no automation, the aircraft could fly in the sky and the rocket could rise empty. Then why should the market need automation? Because it can improve efficiency and save costs.
In other words, automation can help enterprises change to make money. So if the enterprises and friends of automation industry want to make money in this market, the first is how much money our automation can earn for our customers. Artificial saving, efficiency improvement, and upward quality are all ways to make money for customers.
In recent years, there is an increasing number of enterprises that demand automation, which I call love. But on the other hand, the pace of automation is far slower than we think, and I call it marriage. The status quo of the market is the lack of more marriages. Even marrying is a marathon love affair. What’s more, when we are in love, we are overwhelmingly strong when we break up.
It is necessary for the enterprise to carry out automation in the enterprise. It will take two years or so to recover the cost. In this respect, the idea of automobile, IT electronics, household electrical appliance industry and foreign enterprise is more advanced. In their idea, factory equipment and automation (Intelligence) are integrated into one. It is divided. At the beginning of plant construction or when new equipment is purchased, automation will be introduced, so these customers are the main force in the automation industry.
I meet some foreign customers who are absolutely prohibited from working directly with processing equipment, such as the molding industry, if the mechanical hand fails, they would rather stop and do not let the manual go to the molding machine. For example, the matching automation of the CNC numerical control equipment, the day and the European and American departments all require mechanical hands. Or robots are fed up and down, because it involves the consistency of personal safety and product processing. There are also some small and medium enterprises that have put forward automation requirements due to the pressure or policy support of the recruitment, but most of them have a more cautious attitude. These enterprises are potential customers of automation, but it will take some time.
Just as marriage is a matter of two people, so is the automation industry. If we want to successfully import automation, suppliers and consumers need to take the initiative to succeed.
As for the development of the market, you can only rely on your own efforts, no one can give you the right answer. I went to a training for the growth of the enterprise a few days ago, the training teacher eloquence is very good, let everyone find their own bottlenecks, most of the enterprises feel that the market development is not enough when the bottleneck of their own, the teacher said it is very good, through the training of people to find their own short board next to the short board to take out their own methods . Honestly, listen to me a little halo! You can’t blame the teacher, because his training object is to take care of all the enterprises. Automation is a very widespread idea, we are in the development of the market position to be accurate, to be targeted, know how to abandon, beyond the ability and beyond the scope of our own discretion. Any project must be occupied by engineers and manpower. We should devote limited manpower to the right projects.
I also often meet some of my friends to sell my products, and sometimes I ask them to tell me that I can do it without thinking, and I can only get it. Marketing engineers want to sell their products, and the mood can be understood, but the real marketing must be to fully understand the needs of the customers and to discuss the functions, processes and even difficulties of the customers. If you can only say one thing all the time, you can’t have a pleasant discussion.
Again, if the market of automation industry wants to thrive, it must be in the positive interaction between customers and suppliers. The customer is God, that’s right. Customers are always right. This is not true, at least in this industry.
Talk about the product again. The automation industry has a wide range of products, and I think it can be divided into several categories: functional components (such as electrical components, pneumatic components, sensors, mechanical parts, etc.); standard functional equipment (such as mechanical hands and machines).

Understanding the maintenance of the hot pot table

To understand the maintenance of the hot pot table, in the furniture market, although many kinds of furniture materials emerge in endlessly, but the wood furniture still occupies the dominant position, especially some fine wood furniture, more can not be sought.
Take the hot pot table, although there are marble tables and steel metal tables to share a cup of cake, wooden tables are still the first choice for businesses, keeping the traditional flavor of chafing dish. But the wooden hot pot table is more “coddled” than the other hot pot tables. If it is not properly maintained, understanding the maintenance of the hot pot table is easy to cause deformation, corrosion and moldy problems, how to carry out effective daily maintenance?
1. the hot pot table does not need four legs to be on a flat surface, otherwise it will easily lead to the deformation of all the doors and other parts, and shorten the service life of the furniture.
2. do not use damp cloth to wipe the table dust. First of all, the furniture should be lightly brushed away, and then dry cotton cloth will be used to avoid particle dust damage to the surface of furniture.
3. indoor as far as possible to add humidity, to understand the hot pot table maintenance of small common sense, such as often using wet cloth to wipe the ground or use humidifier, fish, which is good for people and furniture.
4. away from the doors, windows, air outlets and other places with strong air activity, do not use air conditioners to directly blow to solid wood furniture, not to be exposed to direct direct sunlight.
Hot pot desktop oil stains a lot, to understand the hot pot table maintenance of small common sense, so clean the time to dilute the detergent with warm water and then gently wipe, and then clean the table dry with clean rag, to avoid leaving detergent and water stains, so the life of the wooden hot pot table will be long service life.

What is the impact of CNC system on CNC machine tools

To understand the impact of CNC system on CNC machine tools, we first need to know the structure of CNC system. The CNC system is mainly composed of human-computer interaction interface + CNC core + programmable logic controller + driver, and the human-computer interaction interface is used for human-computer interaction, and the core of the CNC is the core of the CNC system, which is used for trajectory calculation, position adjustment, and related control, such as acceleration, tool data, zero point offset, and the related control. A variety of complex machine tool functions. The programmable logic controller is used to control the logic of machine tools, such as knife library, hydraulic equipment and so on. The driver is the actuator, which adjusts the electric current loop and speed loop of the motor so that it can quickly and accurately complete the instructions issued by the core of the CNC. Numerical control system is not only a part of numerical control machine tool, but also a complete set of solutions, which includes two parts of hardware and software, only when the hardware and software are combined, and the human-computer interaction interface in the CNC system, the core of numerical control, the programmable logic controller, the driver Co operation, and the co completion of the machine. The control of bed can ensure the high accuracy and high quality of machine tools. Therefore, the quality of CNC system will directly affect the accuracy and efficiency of CNC machine tools. In general, the “good CNC system” defined by the public will configure high-end servo motors. A good CNC system can provide various types of motors for user selection, such as high dynamic motors, large inertia motors, etc. The user can choose the motor with different characteristics according to the different requirements of the machine tool. Good servo motors usually have higher encoder resolution. The larger the resolution, the smaller the speed fluctuation.  The motor with high resolution encoder will be more stable and more precise. People in the industry know that there will be a lot of elastic connections between motor and machinery (such as elastic coupling). After a series of elastic links, the machine will have subtle errors in the transmission process, and the system at this time only knows the feedback of the motor and does not know the error in the transmission, so the actual control precision will be affected by this effect. In this case, the middle and high end CNC system can access the grating ruler as a direct measurement system to form a “full closed loop”, so that the system can directly control and adjust the mechanical feedback through the grating ruler to improve the precision of the machine tool. Nowadays, many high-end CNC systems have been able to achieve more than nanometer accuracy. This also means that the high-end CNC system can provide higher control accuracy and achieve a better interpolation trajectory. Not only that, the vibration of the machine tool in the process of production is unavoidable to be disturbed by the external environment, such as cooling equipment, hydraulic equipment, or other machine tools. This kind of problem can be found by measuring the position deviation of the grating ruler to find these disturbances, but it is difficult to suppress and eliminate the dynamic response parameters of the machine tool. Advanced positioning control functions like the same way to suppress external interference, thereby further improving machine tool processing performance.

Daily maintenance of spot welding machine

A safe use of a spot welder is what we must know for every worker or ordinary person who uses a spot welder. Then what is the correct use of a spot welder and what is the safety operation procedure in the end? Before welding, what kind of preparation do we have to ensure that we are working ourselves and others safely? Here we will give a few cautions about the clean-up work before the operation and the electricity inspection.
We say it is necessary to clean up before welding. There are often foreign objects, such as oil stains, such as oil stains, such as oil stains. It may be a small thing in life, but it may be because it causes the spot welder to be used safely. It’s easy to clear up the trouble, but we have to do it long. It is an important part of the spot welder when we use the welding machine. It is an important link in the use of spot welder. Sometimes the electrical equipment may be exposed. Of course, there may be leakage phenomena in our gas system. So we must do a good check before using it, so as to ensure the safety of our production.

Which way should the maintenance of belt conveyor be carried out

With the rapid development of economy, conveyor equipment has been popularized to every corner and field of human life, and its application scope is more and more extensive. The use of belt conveyor not only saves a lot of time and labor, but also greatly improves production efficiency, and people’s lives are increasingly inseparable from it. Today, Xiaobian mainly introduces to you briefly what needs to be done in the maintenance of belt conveyor.
The repair cycle and content plan of the customized belt conveyor are repaired. The repair period is 3 months for a minor repair, and 12 months for a medium repair (minor and medium repair contents):
Minor repairs:
1. Fix all the screws and locate the upper and lower roller positions.
2, clean the bushing (Zhou Cheng) and adjust the clearance between the bearing bush (Zhou Cheng).
3, check the belt conveyor gear reducer gear engagement, see whether to replace or fill the lubricating oil.
4. Maintenance and replacement of non rotating rolls;
5, replace the local damaged belt and belt joint.
Medium repair:
1, the belt conveyor’s rolling bearings or bushes are all removed and cleaned.
2, repair or replace the axle bush (Zhou Cheng);
3. Overhaul gearboxes, repair or replace gears, shafts and bushes.
4, repair or replace the unloading axle, jacket or axle sleeve.
5, cleaning, repairing and replacing the electric roller;
6. Check the corrosion of the rack and prevent rust in time.

Matters needing attention in various parts of surface grinder

In the operation of surface grinder, we should pay more attention to the operation of each part of the surface grinder.

Positioning: the machine tool should reserve more than 300mm outside the maximum movement space, tighten each foot screw, and the level of the table is around 0.04/1000mm. (installation frequency converter requires higher); every three months, check the work table level and tighten each foot screw.
Three thousand and sixty
Grinding wheel: the selected grinding wheel must be able to withstand more than 2000m/min of cycle speed. The use of damaged grinding wheels is prohibited. The new wheel must be balanced on the flange.  Before the formal grinding, the grinding wheel should be turned for 5 minutes. The maximum feed rate is below 800mm, the grinder is 0.03mm, and the 800mm grinder is 0.05mm.

Spindle: before installing the grinding wheel, the spindle must be rotated clockwise. When the machine is opened, the main shaft must be opened and the water is opened.

Hydraulic device: the surface grinding machine uses a viscosity of 46 hydraulic oil.

Basic structure: the new machine needs to replace hydraulic oil after three months, and then it will be replaced once a year. Check the hydraulic oil level everyday, and the oil level should be between the lowest and the highest line. Before starting the hydraulic motor, make sure that the flow speed governing lever is in the closed position. The hydraulic pressure should be opened after the magnetic absorption is first opened.
Sixty thousand two hundred and twenty

Lubricating device: lubricating oil with guideway of viscosity 32. Confirm fuel tank (tank) quantity every day to ensure that it is above the line. Check the guide rail oil well every week and prevent the guide rail from losing oil. It is suggested that the tank be cleaned once every three months. The grease is regularly added as specified.

Left and right mechanism: it is forbidden to adjust the left and right stroke when the workbench is moving. When the working cable is loose, adjustment should be made immediately. (this article applies to manual type)

The filter box for flushing and vacuum cleaning devices must be cleaned every two weeks. The cold water tank must be cleaned once a month. No air gun is used to clean the plane grinder.

There is no delay in the automation of the customized system

With the flourishing development of various manufacturing industries, the shortage of front-line workers has become a common problem. China has always been a large population, but the real workers who are really willing to go to the workshop are very small, especially after 80. After 90, maybe to sell the house, but to work in the workshop is simply a hero.

But how can the entity to promote the progress of the whole human society be stopped? Only to speed up our automation process, thus greatly reduce the number of workers on the basis of ensuring the quality of products and production, which has become a major problem to be solved urgently by our equipment manufacturers, and to accelerate the implementation of our automation process.
The machine can be customized, laid, and tapped. Can be customized according to demand.

Our customization process is roughly the same:
1. tell us the problems you need to solve, your products and specific requirements.
2. we will draft a rough draft for you and discuss the feasibility, safety and efficiency of both sides.
3. customer approval, confirmation of the order.
3. optimize the details and confirm the final design.
4. according to the requirements, produce the automation system or equipment you need.
5. customer site acceptance, satisfactory delivery!
6., after half a month, additional orders will be faster, better and stronger.

Let us brighten our dreams with wisdom, and create products with wisdom to welcome our brand new future, join hands and win together.