Corrugating carton factory conditions currently using any form of corrugating rollers, it has the same basic functions and wear mechanisms. Corrugated paper in the high-speed, continuous bending section into the ironing process, the lower line pressure constantly and corrugating flute relative displacement of the top and squeeze to create friction rolling by inclusions and minerals contained in durum paper rolling strike so shocked top Corrugated dramatic wear and gradually from the arc ground into irregular shapes, continuous high-speed operation, flute tooth height gradually becomes lower, so that the production of cardboard gradually became standard limit. Some low surface hardness flute Corrugated will therefore make Leng Leng top surface generating pits and depressions, increased wear process. Since the production line is often not always go full-scale paper, corrugated roller surface causing uneven wear caused by the depression caused by corrugating cardboard blister middle unglued. Low hardness under continuous high-speed corrugating single tooth meshing orientation operation status will fall due to plastic deformation shocked, tilt, twist, increase ovality and runout, accelerate the impact Corrugated life and economic performance. The principle and mechanism of work for more than Corrugated wear visible, Corrugated use process is a process of constantly being worn. Damage in the form of summed up: • Normal wear and tear, wear parts are shocked top; * roll surface soft, thin and papery strengthen caused by poor pits and depressions; · mismanagement concave; Base body soft, roller manufacturing caused by poor quality pour flute, tilt, twist. How to extend the life of any grade Corrugated corrugated board production line, corrugating always the most expensive consumable parts. Its economic performance and service life has been an important issue of concern corrugated box industry. Corrugated improve wear resistance and prolong the life of Corrugated is an effective way to reduce the cost of production of corrugated board. Currently there are light industry standards, but also manufacturers of corrugating corporate standards in the quality of the corrugating effective control. Toothed surface hardness and case depth requirements in the following table, the coating thickness at different heat treatment process is completed determines the hardness of corrugated, Corrugated parameter is valid. Corrugating manufacturers of enterprise standards, most manufacturers currently use combined treatment after nitriding or chrome IF quenching, the nitride layer thickness of 0.5 to 0.6㎜ chrome layer thickness of 0.10 to 0.15㎜, after the mainstream technology for the IF quenching chrome. To meet this requirement, all manufacturers now use more material 42CrMo, 48CrMo forging meet their hardenability and hardenability. Life combined treatment roll 800 to nine million running meters. After the manufacturers in order to win a leading position in the market, have to try new kinds of steel in the material, the use of new technologies in the process, the formation of IF quenching chrome, chrome competition after three mainstream IF quenching process tungsten carbide coating and laser hardening, and thus the situation carton manufacturers selected to provide a variety of programs. Market demand and eventually become the dominant technology which direction the market will be the quality and cost criteria to make a choice. After three processes flow (1) → grinding → IF quenching → → Blasting → stress-chrome plating (thickness of 0.10 to 0.15㎜) - Life 800 - 9000000 running meters; (2) → grinding → (IF quenching) → Blasting → preheating → primer → spraying tungsten carbide (thickness of 0.05 to 0.06㎜) → polishing - Life from 2000 to 50 million running meters; (3) → grinding → → Blasting → laser hardening chrome (thickness 0.05 ~ 0.10㎜) - Life from 1300 to 15 million running meters. Corrugating three mainstream status in post-frequency quenching process corrugating IF quenching chrome plating of IF quenching and chrome are historic craft, mature technology, but because IF quenching belong bare heating, it is inevitable oxidation and decarbonization; IF quenching water-based quenching liquid quenching Object and high hardenability CrMo steel, it is inevitable cracks and soft spots. IF quenching has the advantage of reinforcing layer thicker, but under IF quenching hardening corrugating rollers such as after the first slot has a big problem, but the biggest advantage after deformation IF quenching chrome Corrugated is low cost. Tungsten carbide corrugated roll corrugating qualified, high-end technology products in the corrugating manufacturing industry, excellent wear resistance is undeniable, but the application of a tungsten carbide corrugated roll there are many difficult. First, higher manufacturing costs; secondly stringent environmental requirements, can not stand gravel crushing, using more prone pits and depressions in poor paper condition; the third is quality control more difficult, it must be very high at the temperature of the process, or wear poor, low life. Such as cobalt-based tungsten carbide, available heating temperature 2100 ~ 2200 ℃, the wear resistance is the lower limit of tungsten carbide corrugated roll family life, and only 20 million meters long. Laser hardening chrome plating laser strengthening technology based on the principle of laser surface hardening technology of high energy density of the laser beam from the workpiece heating and cooling two processes. Laser surface hardening a metal material and the rapid strengthening of the technical parts of the surface, can improve the surface hardness, strength, wear resistance, while also allowing the central portion remains good mechanical properties. Corrugating surface hardening belong Laser Surface Transformation Hardening. Strengthening of the technical characteristics of laser Laser surface strengthening hardenability dependent material is small. Laser hardening caused by low-grade material instead engage in grade material possible. · Dispersion strengthening. Austenite grains in the rapid heating and rapid cooling of the process environment is not bred to grow up opportunities for forming austenite grains dispersed form martensite dispersed phase or shell-body phase, martensite or Belleville while having lattice reinforced with a dispersion strengthening effect. · No oxidation and decarbonization hardening heat treatment in the traditional steel in the heating process, such as unprotected, would oxidation, decarburization, the steel hardness, wear resistance, reduced performance and service life. Laser Transformation Hardening Because light absorption coatings used may be formed around the spot gas atmosphere, so that the treated surface from oxidation, with performance to protect the workpiece surface. * Anti-fatigue, the workpiece surface laser treatment showed a compressive stress, this performance gear more resistant to fatigue, cracks, furrows, adhesion and other phenomena delay the onset of fatigue and prolong life. · Other strong working layers, conventional heat treatment, including frequency quenching, hardness values outside to the inside there is a clear decline in the gradient, the laser hardening of the workpiece, the hardness of the entire reinforcing layer is almost the same. Laser hardening pieces strong working layer to avoid the conventional heat treatment member in the event of the surface wear, the wear rate will accelerate the phenomenon. · No deformation hardening, due to contain the matrix, laser hardening stress of the surface layer is insufficient to allow deformation of the workpiece. · Pollution. Improve corrugating lifetime guarantee the uptime of the production line as long as possible, reducing downtime roll change time, for manufacturers of production efficiency has been greatly improved; and so reduce the number down to change paper than in the past, reducing the waste paper core; improve the wear resistance of corrugating the core paper wider range of options to make corrugated board manufacturers effectively reduce costs. The emergence of laser Corrugated cardboard manufacturer was provided an optimal cost-effective corrugating, save a lot of direct cost of corrugating manufacturer. Currently in the Corrugated application, due to be applied in low IF corrugating line is more; tungsten carbide corrugated roll applications are concentrated in the high-speed production line, but difficult to access due to the high cost, the low-speed corrugating market. Corrugating relatively wide field of laser applications in the low-speed production line, the contrast medium frequency corrugating, with higher and more stable quality, longer service life; high-speed production line, the laser corrugating just minimal distortion After the amount of the fine worn away, to meet the requirements of high-speed production lines. On the whole, laser and tungsten carbide corrugated roll corrugating are high-tech products, the three mainstream roll process, with the best price-performance laser corrugating rollers.