Textile Machinery Industry: Combining Self-Reliance with Imported Technology

With the spring breeze of reforms warming the motherland, the textile machinery industry has also entered a development period of self-reliance and the introduction of technology.

Reform and opening up is to invigorate and open to the outside world. Invigorating domestically is to further liberate the productive forces; opening up to the outside world requires us to gradually understand the advanced technologies of the world, and then learn advanced foreign technologies. At the same time, we can also introduce technology for our own use.

From 1978 to 1985, the country had spent more than 270 billion U.S. dollars for the introduction of foreign advanced technologies, of which more than 15 billion U.S. dollars were used for the introduction of technology and technological transformation.

Under the guidance of the policy of reform and opening up, the central government proposed to introduce 3,000 foreign technology targets from abroad and have corresponding policies and measures. After the implementation of the plan, there were nearly 4,450 actually introduced projects, including software technology, key equipment, the entire production line, “three supplements”, joint ventures, and cooperative production.

Under this policy, the textile industry has also used the state to allocate foreign exchange of 260 million U.S. dollars, introduced 457 technologies and equipment, used Chinese bank loans of 160 million U.S. dollars, and introduced 131 technologies and equipment. These foreign exchanges are mainly used for the purchase of foreign advanced technology and equipment, including more than 30 polyester filament, polyester filament spinning equipment, more than 390,000 rotor spinning machines, more than 600,000 spindles of advanced cotton spinning equipment, winding Equipment, more than 20,000 jets, water jets, rapiers and gripper looms, more than 9,000 warp knitting machines, weft knitting machines, and more than 250 flat screen printing machines, rotary screen printing machines.

Through the introduction of foreign advanced textile machinery production technology, China's textile industry's production capacity and process technology levels have been improved, of which 8 projects were introduced in the form of a combination of technology and trade, that is, through the purchase of a considerable number of complete machines and components, the introduction of The manufacturing technology of products has played an important role in improving the technical level of textile machinery products.

At that time, the textile machinery industry used more than 27 million U.S. dollars of foreign exchange for foreign exchange, and also used some of its own retained foreign exchange. It introduced a total of 74 large and small design and manufacturing technologies for advanced textile machine mainframes and special infrastructure components from abroad. Digestion, absorption and cooperative production will eventually achieve localization.

Among the equipment technologies introduced in the textile machinery industry, the 50-ton polyester staple fiber complete sets of equipment imported from Japan's Toyobo and the balers imported from Mitsubishi Heavy Industries of Japan are respectively used by Shanghai Second Textile Machinery, Zhengzhou Textile Machinery, and Sui-Made Textile Machinery. Undertaking the realization of localization, greatly improved the level of polyester staple fiber complete sets of equipment in China; the design and manufacturing technology of high-speed spinning equipment for polyester filament imported from Germany's Bamag was undertaken by Shanghai Second Textile Machinery, realizing the high-speed spinning and large-volume packaging of polyester filaments. Localization and industrialization of equipment; the design and manufacturing technology of FK6 series elastic yarn false twister introduced from Germany's Bamag company was undertaken by Wuxi Hongyuan Textile Machinery Company and Jingwei Textile Machinery Factory, and after localization, it was greatly improved. Domestic market share of polyester filament post-processing equipment; Design and manufacturing technology of complete sets of acrylic dry process equipment imported from DuPont, USA, respectively from Dalian 523 Plant, Zhengzhou Textile Machinery Plant, Shaoyang Second Textile Machinery, Shaoyi Textile Machinery and Shanghai The textile and electric power plant undertakes, after realizing the localization, provided complete sets of technological equipment for 5 new acrylic fiber factories; from Bootel, Switzerland The introduction of flat screen printing machine imported from the Netherlands and rotary screen printing machine design and manufacturing technology, are borne by the Zhengzhou Textile Machinery Factory and Huangshi Textile Machinery Factory, later to achieve localization of the printing machine technology has greatly enhanced step. At the same time as the introduction of host technology, China has also introduced a full set of auxiliary equipment and network equipment.

In the weaving machinery, the design and manufacturing technology of the TP500 series rapier looms imported from Italy Schmidt Company is undertaken by the China Textile Machinery Plant; the design and manufacturing technology of the ZA202 air jet looms imported from Japan's Tsuda Co., Ltd. is from Xianyang Textile Machinery. Factory commitment; The design and manufacturing technology for the introduction of the ZW series water jet loom from Japan Nissan is undertaken by Shenyang Textile Machinery Plant.

Among the imported wool and knitting machinery, the design and manufacturing technology of the carding machine introduced from Contec of Italy is undertaken by Shanghai No.1 Textile Machinery Factory; the design and manufacturing technology of Raschel machine introduced from Karl Mayer of Germany is Changde Textile Machinery Factory undertakes.

In the printing and dyeing machinery, the design and manufacturing technology of airflow dyeing machines imported from Germany's Dus was undertaken by Shaoyang Second Textile Machinery; the design and manufacturing technology of heat setting machines imported from Germany's Waffles Company was undertaken by Shanghai Printing and Dyeing Machinery Plant; the long loop introduced from Germany. The steamer project was undertaken by Wuhan Textile Machinery Factory; the dyeing machine technology introduced was undertaken by Shanghai Second Textile Machinery.

While introducing the host design and manufacturing, China has also introduced a number of design and manufacturing technologies for basic components, accessories and testing instruments for textile machinery, including optical and electrical weft-cutting devices for Taicang Textile Instrument Factory, and weft feeders for the Weinan Textile Machinery Plant. , Changyi Textile Machinery Factory's nickel mesh manufacturing technology, Changzhou Textile Instrument Factory's counter manufacturing technology, Hengyang Textile Machinery Factory's roller bearings and pressure roller bearings, Tianjin Textile Machinery Plant's steel plate groove manufacturing technology, Changling Textile Machinery Factory's Uster's equalization instrument design and manufacturing technology, metal clothing, knitting needles, steel weaving technology and the spinneret design and manufacturing technology imported from Switzerland by the Changzhou spinneret factory.

The introduction of these technologies in the process of external negotiations, on-site inspections, training exchanges, and the conversion of drawings and technical data, and the implementation of projects have brought many benefits to textile machinery companies: First, the relevant personnel of the company have broadened their horizons and learned a lot of new ones. Knowledge, new technology, and new technology have improved their technological level. Second, they have greatly improved the quality level of textile machinery products by learning advanced foreign technology and advanced supporting equipment. The third is through the digestion and absorption of imported projects. The management level of the company; Fourth, in the process of implementing the project, the textile machinery enterprises simultaneously carry out technological transformation, so that the company's technological progress has a new starting point.

However, the modernization of the textile industry cannot be entirely achieved through the introduction. To truly realize the modernization of the textile industry, we must also have our own equipment manufacturing capabilities, implement the principle of combining self-reliance with the introduction of technology, and finally realize our own equipment and make China's textile machinery industry. The technical level, quality level and management level achieved great speed.

For HITACHI Cylinder Seal Kit

Daily maintenance of excavator hydraulic cylinders
The hydraulic cylinder of an excavator is one of the important hydraulic components responsible for driving and controlling mechanical movements. In order to ensure the normal use of hydraulic cylinders and extend their service life, daily maintenance is necessary.
1. Regularly clean the hydraulic cylinder: During use, the hydraulic cylinder will be attacked by various pollutants, such as dust, sediment, oil stains, etc. These pollutants can affect the working efficiency and lifespan of the hydraulic cylinder. Therefore, it is necessary to regularly clean the hydraulic cylinder.
2. Regular inspection of seals: The seals of hydraulic cylinders are key components to ensure their normal operation. If the seals are damaged or worn, it can lead to oil leakage or unstable operation of the hydraulic cylinder. Therefore, it is necessary to regularly inspect the sealing components of the hydraulic cylinder and replace them in a timely manner if there is any damage or wear.
3. Regular inspection of hydraulic oil: The operation of hydraulic cylinders requires the support of hydraulic oil, so the quality of hydraulic oil has an important impact on the working effect of hydraulic cylinders. Regularly check the quality of hydraulic oil, and replace it promptly if there is contamination or deterioration.
4. Regularly check the hydraulic pipeline: The hydraulic pipeline is the blood vessel of the hydraulic cylinder. If there is oil leakage or damage to the pipeline, it can cause the hydraulic cylinder to not work properly. Therefore, it is necessary to regularly inspect the hydraulic pipelines and promptly repair or replace them if there is any oil leakage or damage.
5. Regularly lubricate the hydraulic cylinder: The piston rod and piston ring of the hydraulic cylinder need to be lubricated to reduce wear and friction. Therefore, it is necessary to regularly apply lubricating oil to ensure the normal operation of the hydraulic cylinder.
In short, the daily maintenance of excavator hydraulic cylinders is very important, which can extend their service life and improve work efficiency. Regular cleaning of hydraulic cylinders, inspection of seals, hydraulic oil, hydraulic pipelines, and lubrication of hydraulic cylinders are required.


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