The equipment is divided into vertical and horizontal structure, for the ball finishing.
Main structural features
Lapping Machine,Ball Lapping Machine,Steel Ball Lapping Machine,Steel Ball Lapping Xinxiang Sunrise CNC Bearing Equipment Co., Ltd. , https://www.cncsunrise.com
Since the late period of the "Tenth Five-Year Plan" and the "Eleventh Five-Year Plan" period, the rubber industry has adhered to the three concepts of scientific development, brand strategy and implementation of circular economy, insisting on independent innovation and achieving sustained, rapid and healthy development. Taking tires as an example, the average annual increase in output is about 18%, the radialization rate is increased by about 5 percentage points annually, and the annual increase in product exports is more than 20%. In 2007, the total tire production in the country reached 330 million, ranking first in the world; the radialization rate reached 70%. Among them, 46 key tire companies have 237 million tires, 177 million radial tires, and 74.7% meridianization rate, which is close to the average level of developed countries; exports have increased by 28.6%, and exports of radial tires have accounted for total exports. 83.4%. High-tech, high added value, and high technology content, and no tubeless, wide-section, flattened radial tires that closely follow the international market, have occupied a dominant position in the market.
However, the current imbalance in certain domestic policy regulations has become a bottleneck restricting the scientific development of the rubber industry.
First, natural rubber is classified as a restricted type of imported product, which does not meet actual needs and is unreasonable.
In 1999, the country classified natural rubber imports as a restricted product. At that time, it may have been considering protecting the production of domestic natural rubber. However, the national import quota system for natural rubber was implemented around 1999, and the country’s annual quotas can basically meet the needs of the current year. Moreover, the use of quota glues with a low tariff rate of 12% has little impact on the production and cost of the company. After China's accession to the WTO, the country will cancel the quota system, and tariffs will be uniformly applied to a high tax rate of 20%, and the tax rate will rise instead of fall.
Since the accession to the WTO, the proportion of natural rubber imports in the country's total use of natural rubber has been around 70%. Utilizing foreign resources, using domestic advanced technology and equipment to manufacture tires and other products, and exporting about 40% to the international market, it not only solves domestic labor problems, solves socio-economic development issues, but also promotes technological progress in the rubber industry, for both countries and enterprises. All are good. According to the domestic natural rubber production situation in the past few years and the “Eleventh Five-Year Plan†development plan, in the next 5-10 years, the import volume of natural rubber will increase steadily year by year, with an increase of approximately 100,000 tons per year, and imported rubber will occupy 70 There is no big change in the percentage of %. Domestic synthetic rubber, whether it is variety, specification, quality, or quantity, will not keep up with the need in the short term. Tire production, especially radial tires, is mainly based on natural rubber.
Under such circumstances, we still insist on the inclusion of natural rubber in restricted imports, and we still insist on high tariffs of 20%. This is not conducive to social and economic development, and it is not conducive to technological progress in the rubber industry. It is unreasonable and even more inconsistent. The reality of the rubber industry. Therefore, it is recommended that natural rubber be no longer included in the restricted import products, and according to international practice, import tariffs for natural rubber should be reduced to 5-6%.
Second, radial tires, engineering tires and green rubber additives and other leading products, high technological content, international market demand, circulation, the country should focus on supporting its scientific development, and continue to expand exports in the form of processing trade.
In the international market, more than 850 million tires are circulated among countries in the world each year, accounting for more than 65% of the world's total tire output of 1.3 billion. As a replacement product for the tire industry, radial tires have the characteristics of high technological content and labor-intensive duality. Therefore, foreign multinational companies have set up joint ventures and wholly owned factories in China. By 2007, tire production of foreign tire companies accounted for 70% of the national total. The output of all-steel radial tires is close to 30%. On the basis of the introduction and absorption of technology, domestically-funded enterprises have substantially increased the level and strength of independent innovation and continuously developed tires of various varieties and high performance to the domestic and foreign markets. In 2007, the output of the top ten Chinese brand-name all-steel radial tires accounted for 65%. Above, the six-semi-steel radial tire brand accounts for about 25%.
40%-45% of tire products in China are exported overseas, including foreign-invested enterprises in the processing trade mode, and the proportion of feed processing of major tire export enterprises is over 60%, and some even reach 100%. China has become a leading rubber product manufacturing and export base for radial tires, and processing trade has become a major export method, and its existence has become a key to the scientific development of the rubber industry.
Third, the rubber industry does not belong to the "two high and one capital" industry with high energy consumption, high pollution, and resource type. The "two outward" development model for re-export of imported raw materials and processing should be correctly guided and standardized, and should not be limited.
In the past decade or so, the entire industry has vigorously promoted technological progress, and major product structures have been greatly and effectively adjusted, and its energy consumption (coal, electricity, gas) levels are relatively advanced. The average power consumption of large and medium-sized tire enterprises in 2007 was 2.1126 thousand kWh/ton of plastic, 0.9377 tons of coal/ton of plastic, and 20.2995 tons of water of plastic, which have been reduced every year in recent years.
The production of rubber products is free of waste slag; wastewater is recycled almost 100% in large and medium-sized enterprises; about 90% of exhaust gas and dust have been filtered out and dust emission has been eliminated through the use of auxiliary measures such as auxiliary equipment on internal mixers and pulsed bag suction devices. The amount is about 0.06 kg/ton of gum, and the vulcanized flue gas is discharged in the same way as abroad. The above situation is in line with the state's policy of supporting environmentally-friendly products.
The development of new technologies and new products has realized the maximization of resource utilization. The main rubber raw material - natural rubber is agricultural products, China's natural rubber required 70% rely on imports, that is, the use of overseas resources to develop their own; synthetic rubber is not a direct use of oil, gas and other resources, but the use of oil and gas resources to produce ethylene processing Part of the C4 and C5 produced during the process. This part of the by-products can only be made of synthetic rubber. The synthetic rubber used in rubber products is actually the full use of petroleum resources. The concept of the resource industry itself proposed by the state is not simple, agricultural and sideline products are renewable, and oil and gas resources can only be used more rationally if they engage in deep processing and squandering. The rubber industry meets this characteristic.
If the import of natural rubber is still listed as a restricted type of imported products, and the export of finished products is restricted under the terms of “two highs and one capitalâ€, even if the rubber industry loses the opportunities for sustainable development, it will not be conducive to the construction of a harmonious society. For example, in 2007, the export volume of tires was about 150 million. If 20% of exports were to be exported, 30 million of them would remain in the country, causing a large surplus in the domestic market and an orderly order in the market. If production is reduced, capacity will be idle. Unemployment will severely restrict the scientific development of the tire industry.
Vertical layout, large cycle machining;
uitable for the finishing lapping process;
The rotation of main shaft and turntable adopt frequency conversion speed regulation;
Hydraulic drive pressure, mechanical pressure preservation by compression spring and constant pressure nut locking;
A spring equal distance compression structure is adopted to ensure the uniform compression of the steel balls between the two plates;
The main shaft bearing adopts the mechanical seal structure, which eliminates the hidden danger of the main shaft oil leakage;
The main drive adopts hard toothed surface bevel gear motor, and the reducer is low in heating and high in drive efficiency;
After the gear motor is installed, the output shaft is facing upwards, thus eliminating the hidden danger of lubricating oil leakage
Representatives are concerned about the three hot issues in the rubber industry
Chairman of the People's Congress of the Rubber Industry People's Congress, Fengshen Tire Co., Ltd., Cao Chaoyang, Party Secretary and Ding Yuhua, Chairman of the Triangle Group, paid attention to hot issues and brought the three hot issues to the National People's Congress.