2009

Batch production of ceramic roller, customer groups to multi-industry development; <br> Tungsten carbide corrugated roll has been praised by the market, and the business of paperboard production industry is expanding steadily.


2008

Introduced American 100HE supersonic plasma spraying system; <br> The introduction of German fiber laser engraving machine; <br> Successfully developed the ceramic roller product project; <br> The establishment of coating physical and chemical testing room, the addition of Japan Vickers hardness tester, American polishing machine, metallographic microscope and optical projector and other precision testing instruments.


2007

Introduced JP8000 HP/HVOF supersonic flame thermal spraying system, successfully developed tungsten carbide corrugated roll; <br> Independently developed tungsten carbide coating bath; <br> Successfully developed the ring corrugated roller for import and domestic special paper production line, and entered the special paper industry; <br> Complete the repair of corrugated roll of large Caigang tile plate rolling for export; <br> The peripheral heating high speed corrugated roll with a diameter of 540 and the siphon type pressure roll with a diameter of 600 sinks were developed and manufactured. <br> With years of accumulation of corrugated carton industry special roller application services, maintenance and manufacturing experience, officially launched the client application technology training plan, for the user "roller application technology lecture series corrugated carton industry", the lecture "the application technology of the corrugated roller" respectively in the paper industry in Asia (Shanghai) co., LTD., love ya the Asian companies, Jiang Xijia into packaging, Zhejiang Zhengtai packaging and other companies successfully held, has been unanimously praised, and directly for customers to carry out on-site diagnosis and solve various difficult problems, help customers formulate a reasonable corrugated roll design and scientific use method, complete the new expansion of the production workshop of 2200 square meters.


2006

A modern CNC bidirectional high-current roll hard chrome plating production line for corrugated roll has been developed and built. The plating workshop of more than 1000 m2 has been successfully put into production, which makes the wear resistance of corrugated roll coating reach the high level in the industry. <br> It cooperates with Praxair Surface Technology Co., LTD., a leading company in the field of thermal spraying, to produce tungsten carbide corrugated rolls. <br> Successfully developed the ultrasonic pinhole roller on the American Johnson & Johnson Band-aid production line; <br> Knurling tool development and manufacturing success.


2005

A series of computer special design and service software have been developed. The software for the design of corrugated roll can simulate the operation of various types of corrugated roll, calculate the design of various parameters and optimize the scheme. The software for the selection of various types of corrugated roll can quickly evaluate and select the economy and rationality of various types of corrugated roll according to the requirements of users. <br> Completed the new expansion of the production workshop of 4000㎡.


2004

Completed the plasma spraying and laser engraving process of the ceramic roller project at home and abroad; <br> Completed the ERP management system (enterprise LAN) "Production management, customer management" development and put into operation; <br> Develop the establishment of product process standard library and standard process library.


2003

Complete the transformation of CNC full closed-loop external circular and high grinding machine; <br> The roughness Ra 0.003 precision mirror coating roller and high precision twill coating roller (applied to 3M Shanghai Company) were developed successfully.


2002

The technology of leather coating roller was successfully transplanted to the coating roller of micro-corrugated board, and the technological requirements of high-precision and precise gluing of micro-corrugated board were realized. <br> Developed and produced high precision mirror, extinction, fog surface heating and cooling rollers, mirror ironing rollers; <br> External vacuum adsorption transformation of corrugated board production line was carried out. <br> Developed and produced Changzhou Changfeng packaging Italy Agnati 2500mm high speed production line corrugated roller; <br> Developed and produced Shanghai joint packaging Mitsubishi 2290 mm high speed production line rubber roller; <br> Completed the project of computer simulation and analysis of corrugated roll trajectory; <br> New factory completed and moved smoothly, new and old production workshop of 3000 square meters, office building of 1300 square meters, factory appearance brand new.


2001

Successfully completed the introduction and production of the modern German HEEF-25 high-efficiency microcrack electroplating hard chromium process, which improved the comprehensive quality and wear resistance of the hard chromium plating roller products to a high level; <br> Developed and produced 300 lines of ink printing metal roller and 7.5mm ¢290×2540 special type A corrugated roller; <br> The company has set up a professional installation and commissioning team to improve the customer service ability to a new level.


1999

Officially renamed as Changzhou Wujin Haili Roller Co., LTD. <br> Completed the Italian leather roller coating machine coating roller series development, become the domestic can replace the import leather coating roller products.


1996

Chairman Liu Lijun founded "Wujin roller factory"; <br> Successfully developed and produced metal printing roller, leather coating roller and rubber coating roller. From then on, I began to serve China's packaging and printing, coating, leather and other industries. <br> Production workshop 900 square meters.


Maintenance and maintenance of flexographic plates

To achieve the longest printing resistance of the flexo plate is inseparable from its correct and timely maintenance. In daily printing operations, adhere to the correct cleaning, unloading and storage methods, in order to ensure the quality of the flexo plate, so that it can play a good reproducibility and printing resistance. Only by maintaining the quality of the flexo plate for a long time can the service life of the flexo plate be extended while ensuring the printing quality.


Causes and solutions of poor overprinting of high definition cartons

High definition carton printing generally refers to 80-line flexo plate and above carton printing, most of its substrate material is coated paper, because of its ink absorption performance and surface roughness and ordinary carton printing paper used in carton board, whiteboard paper has a big difference, so the phenomenon, causes and solutions of overprint quality problems are different.


How to judge and adjust each printing pressure according to the dot state of the printed product in flexographic printing

建立正确和稳定的印刷工作压力,是柔版印刷工艺中保证印刷品品质的基本条件,在日常的印刷作业中,不正确的印刷工作压力,往往导致印刷品质出现波动,造成颜色色差、糊版等等,常常给印刷作业带来很大的困扰,并造成印刷耗材和辊筒的不正常损耗


Reasons and solutions for false overprinting of ordinary cartons

Improper overprinting often causes great trouble in the flexo printing operation of the carton. Due to the great difference in the ink absorption properties of the printing materials, the phenomena, causes and solutions of the overprint quality problems are completely different between ordinary cartons (box board paper, white board paper) and coated paper cartons.


Liner - indispensable in carton flexo printing

瓦楞纸箱直接柔印中使用衬垫,是由作为瓦楞纸箱印刷的承印材料——瓦楞纸板的结构特性所决定的。瓦楞纸板楞型的特殊结构形式,使瓦楞纸板具有弹性和缓冲性能,保证了瓦楞纸箱内的被包装物品

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