How to buy a machining center

1. Center, people's Hospital, maternal and child health care hospital can do, you take baby Baba within an hour, take to the hospital registration line, do not need to take the baby.

2. The key to purchasing a machining center is to estimate the future machining demand by comprehensively considering the current process requirements and processing capacity, including the following factors: rapid machining feed, rigidity and accuracy, extension axis and maintenance technical support. Fast machining feed can obtain the best combination of spindle power, torque and speed, users do not need to blindly pursue the highest spindle speed to obtain the ideal feed speed. In most cases, the balance between spindle torque and speed is determined by the blank material and the amount of metal removed ring rough machining. The machining center with spindle speed of 10000-15000r / min can meet 70% - 80% of the mold processing requirements. It is also very useful to rely on program processing and control software specially designed for mold processing
with the continuous heating of the random bed, the increase of heat will seriously affect the machining accuracy and maintain a stable part tolerance. The high-speed spindle needs to use air / oil lubrication coating on the spindle bearing to rece the friction at the same time. Therefore, the spindle can keep running at low temperature for a longer time. Because the coefficient of thermal expansion of ceramic is only 1 / 3 of that of steel, ceramic bearing should be used instead of steel bearing
in addition, selecting a machining center equipped with an extended turntable device (such as five axis machining) can significantly control the cost of machine purchase and rece the number of clamping, which not only improves the utilization rate of machine tools, but also increases the scalability
finally, before purchasing a machine tool, you should consult your peers about the reliability of the selected machine tool, and pay attention to the technical support level of the brand, the supply of spare parts, and the cost of machine tool renovation and upgrading

3. First of all, you need to confirm whether you need to buy a second-hand machining center is an imported brand or a domestic brand, and then test the accuracy of the machining center to see whether the screw rod clearance, guide rail galling, inlay wear and so on

4. Usually, we should understand the working principle of CNC machining center,
understand the demand in proction,
understand the selection of CNC machining center machine tools,
understand the function, performance, service life, price and after-sales service of typical CNC machining centers in the instry
so you can apply<

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5. More is to enjoy convenience, this is the speed of China's development, we do not have to take cash to go out as before, so that life is more convenient and comfortable, I hope it will be better

6. Drill and attack, more than 200000, or engraving and milling machine, 160000-170000, interested in leaving a number for you to recommend

7.

According to the relevant information of the people's Bank of China, the research and development of digital RMB of the people's Bank of China is steadily advancing. First, the internal closed pilot tests are carried out in Shenzhen, Suzhou, xiong'an New District, Cheng and the future Winter Olympics scenes, so as to continuously optimize and improve the functions. According to the information disclosed at present, we can know that digital currency is installed in the app of mobile phone. You can transfer money and pay without Internet. The paper money and coins in circulation are equivalent to RMB

All in all, for example, when everyone is buying mineral water on the roadside with a small notebook. The water buyer wrote in the book, jdjkanwnsncu (this represents the serial number of passers-by), - 1 yuan. At this time, the owner of the book written asnnckcncilecn (on behalf of the serial number of the owner) + 1 yuan. This does not require banks, without Alipay WeChat or cash, to pay for transactions with hitherto unknown payment methods and payment channels. It has replaced the cumbersome cash coins and the network restrictions of Alipay WeChat. p>

8. Now many small and medium-sized machinery processing enterprises in the South have stopped proction ~! You can go and have a look ~!

9. Man, I'll calculate the cost for you. The more the Dell Ling is a low-end entry-level model, the more the power consumption is 100W. The power consumption is about one yuan per hour in 10 hours and one yuan per hour in the city. You dig for 12 hours, and the power consumption is 1.2 degrees. I don't know what kind of currency you dig. Judging from the quantity, it must be a cheap counterfeit currency. A currency may be about 0.0002-0.2, mining is very harmful to the graphics card. After mining, the graphics card can only live for 3-6 months. The notebook manufacturer who is damaged by mining defaults that it is artificially damaged and will not be repaired. The Dell Lingyue is about 4000 yuan. You have to lose 1 yuan per day in electricity bills and notebook loss fees. The 4000 fast notebook can only be used for half a year, and you don't make money. You have been losing money. Pure hand fight, please adopt!