Mg Ingot
Metal magnesium is
a new type of lightweight and corrosion-resistant metal material that was
developed in the 20th century. The application of magnesium is mainly
concentrated in the four major fields of magnesium alloy production, aluminum
alloy production, steelmaking desulfurization, and aviation industry. It is
widely used in automobile manufacturing and light industry. , metallurgical
industry, chemical industry, electronic industry and instrument manufacturing.
Magnesium Ingot,Magnesium Alloy Ingot Bar, Magnesium Alloy Ingots,99.98% Magnesium Ingot Hwa Seng Resources (Hong Kong) Co., Limited , https://www.hwaseng-resources.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge> Newspaper printer roller bearing fault diagnosis Newspaper printer roller bearing diagnosis
Follow the progress of the manufacturing process; the printer production skills continue to improve. However, because the printer's drawing accuracy is often higher than the printing accuracy of the production and use requirements; equipment managers often ignore the printer's protection problems; especially the bearing protection and other problems present a serious problem The accuracy of the printer has often been damaged; even unable to recover; form economic losses. Below; talk about the diagnosis and prevention of problems with newspaper printer roller bearing problems. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
First, the accuracy of the roller bearing and the printing accuracy of the printer before the problem of the printer roller bearing; directly or directly will be reflected in the operation and products; only did not lead to our attention. Sometimes adopt the method of increasing the drum lining; Problems such as printing pressure and uneven printing ink color are solved; however, the printer may have a problem that it cannot reproduce more than 80% of the dot level.
There are two types of printer roller bearings that we encounter. One is the cracking of the support frame, the track surface of the inner and outer rings is detached, and the ball is not moving smoothly; the mechanical lock is caused; such problems are significant; After being repaired, the printer will be in normal operation. In fact, such problems are already present in another type of problem before the severe mechanical lock is caused; that is, the track surfaces of the support frame, the inner ring and the outer ring are worn; The problem is not significant; it affects the print quality first; it is also a problem that is often not easy to cause attention in the repair of the printer; because the printer can still operate normally at the moment. During the web printing process; when the tape is cracked and wraps around the roller; Increase the force of being wrapped around; cause smooth failure, partial damage of the bearing; increase the clearance of the damaged part of the bearing; cause uneven pressure on the printing surface. If it is smooth for a long time in a semi-failure condition; bearing inner ring and outer The track surface of the ring will cause the bearing clearance to increase severely due to long-term wear; it is generally manifested by lack of printing pressure; uneven printing ink color, field pulling, etc.; 30% of the prints are lost at the outlets, and more than 70% of the outlets are netted.
Problems caused by the printer's roller bearing; some can be compensated by operation; some can not be compensated for by operation; this involves the problem of repairing the roller bearing under the shackle condition. Each printer is manufactured at the factory; Fixed print accuracy targets; such as dot reproduction and overprint accuracy; these targets are the basis for us to determine the quality of the print. Then we can observe the prints; we can also roughly determine the print accuracy that the printer can reach; Whether it is possible to produce a printed product with the required precision; it can be determined whether it can be repaired; this is the principle location of the "printing machine bearing bearing precision is the printing precision of the printing machine".
Second, the prevention of printer roller bearing problems After analyzing the problem of the printer roller bearing attack; can be seen; to prevent the loss of printer roller bearing accuracy; first select the type of smooth oil used in the printer; and replace it in time, secondly; to make the printer The tension system adheres to the normal working condition; the tension system of the printer is often protected; the tension output is stabilized; the paper strip is cracked around the appearance of the drum during the printing process. In addition, the selection of suitable raw materials is also an effective way to reduce the problem of the printer roller bearing. .
Article Keywords: Bearing problems
Recommend to friends comments close window Bearing related knowledge Unpacking the outer ring of NSK bearing
Representation and detection method of NSK bearing temperature rise
Timing viewing of FAG bearings is especially important
This article links to http://
Please indicate the bearing network http://
Previous: "Can the SKF imported bearings be replaced"? The following is the reason: the cause of overheating of the bearing in operation
Newspaper printer roller bearing diagnosis
Source: China Bearing Network Time: 2014-06-07