Vendredi 15 juillet 2011

China sheet metal industry, the opportunities and problems and shortcomings

Stochastic programming software sales, but the majority of domestic or manual programming CNC bending machine, to the experience of too many masters on the other hand, gas spring domestic manufacturing process requirements in relation to foreign countries is still a certain distance, so efficiency is did not improve the performance of CNC bending machine did not play to the extreme. 1.4 Finally, based on product cases may have to carry out welding, grinding, painting, assembly, packaging and other processes, in this narrative is not 11. 2.2.2.2. China sheet metal industry, a good development trend of the whole, in recent years, due to the overall development of the manufacturing sector, China's rapid growth can be described as sheet metal industry. Industry prospects, according to a statistics, the current domestic sheet metal industry, the degree of the annual growth of 11-15%, far larger than the other manufacturing industry. This is mainly the following several reasons. An increasing demand for production capacity. China has increasingly become an international processing and manufacturing center, coupled with increasing foreign investment, metal processing capacity needs are constantly increasing, while the metal processing industry in the electrical control box, machine shell, etc. In general, sheet metal parts, so demand for sheet metal processing capacity is also rising. Complex process, but the machining precision is low, easy to get started. On the sheet metal processing, the process.

    China sheet metal industry, the problems and shortcomings, but at the same time, the domestic sheet metal industry in constant development, we are generally faced with some problems and shortcomings: outdated equipment. Currently a large part of the sheet metal business is essentially still in the small workshops of production patterns, generally only one or two punch plus a bending machine, the conditions may be better to add a laser cutting machine. At present the majority of individuals seen basically is still relatively low-end punch of the punch, there is no automatic blanking mouth, inflatable devices, and even
Some of the machine programming software is still stuck in DOS era, only in the relatively large number of foreign as well as high-tech enterprises will use the FMS and other equipment. These greatly affect the productive capacity and competitiveness of enterprises. Technological backwardness. At a large state-owned enterprises have a lot of large sheet metal equipment, the majority of the purchase of seven or eight years ago, due to staff turnover reasons, when the handover technology / experience to the novice can not be accepted by acceptance of only about 50%. Later equipment, although the advanced (such as FMS), but still be treated as ordinary compound machine to use, and the manufacturing process, do not use micro-connections, can not be to maximize the efficiency of the machine. Information-poor. Update the current speed is terribly busy, but come into contact with individuals in charge of enterprises rarely take the time to get access to relevant information, not to mention engage in intelligence and information gathering dedicated specialized departments. The use of CNC machine tools low. For example, in recent years, the domestic application of CNC technology has been improving in-depth, all kinds of CNC machine tools are also becoming increasingly popular, but the current lack of a large number of internally experienced senior technicians in some areas even a monthly salary of 8000 hard to find the phenomenon of senior skilled workers . It is precisely because of such lack of talent, the domestic performance of numerical control equipment, the majority did not play to the maximum. CNC Software Update slow, and general poor. I am in contact with the enterprise from the point of view, the majority of enterprises to use most of the NC programming software for OEM bundling random software, many of the older machines still in use DOS version of the software, functions relatively backward, the user's skills also need to improve. If the factory has several sets of machine tools from different vendors of software, both in personnel training, equipment, and operations management, programming efficiency, equipment, task switching, etc. inconvenience.

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Par shuangyuan - 1 commentaire(s)le 15 juillet 2011

To extend the service life of machinery and precision

For surface grinding machine, the first of his demanding processing environment, processing and environmental conditions met, maintenance work can be done more thoroughly gas spring and more effective! Precision Surface Grinder conditions permit, preferably in air-conditioning thermostat plant work, such a beneficial mold first, the stability of the workpiece without deformation; second, air-conditioning plant clean, easy to clean. Here's to focus on routine maintenance to maintain precision surface grinding machine work:

   For many users, and mechanical equipment only know how to use, but often overlooked this aspect of mechanical maintenance. In fact, machine tool maintenance maintenance is the correct use of the most important aspects, mechanical maintenance is well on the mechanical precision, the continuation of life will play a role, it can not be ignored! So how do mechanical work for the upkeep and maintenance, the following manually precision surface grinder, for example, for everyone to talk about the importance of maintenance:
In order to ensure precision grinding machines grind, the need for regular, routine maintenance of the implementation.

1) The daily operation completed, the grinding of various components, as it is the sliding parts should be oiled after wiping clean.

2) pieces with a clean cloth or small brush to clean the various parts of the grinding dust.

3) The necessary parts should be marked with anti-rust oil, such as the spindle grinding head, grinding wheel flanges, and other parts of the dial.

4) prohibited the use of air blow gun cleaning table items and grinding, as blow guns flowing into the grinder should be scrap-iron track, causing damage to guide rails, affecting accuracy and feel,

5) Please note that whether or loose drive cables and timely adjustment. Should be noted that replacement of wire rope and steel cables to the tightness of winding, because it directly affects the life of steel cables.

6) Please note that the top of the oil lens grinder if there is oil, to ensure that asphalt is smooth.

7) Tank requested the use Mobil1405 Machine Tool Guide No. Isso32 special oil or oil, precision grinding of the rail lubricant requirements were rather strict, since the quality of lubricating oil directly affects the merits of precision grinding machines, feel and service life. So, choose essential oil, rail oil demand that Qingxi, creamy, low viscosity, if one pump is too sticky, but with no oiling air transfer caused by burning. And oil viscosity is too high Guide washed iron filings do not go, if things continue asphalt plug, rail damage caused by dry friction, so feel heavier machine, precision run away. Oil should be changed once every 3-6 months, the first three months to replace the second six months after the replacement.

8) oil should be properly adjusted, clockwise as tight counter-clockwise for the song, tune big too fast, the flow will tend to be less than overflow waste, transfer would affect the smaller feel.

9) the motor cable connector should regularly check to prevent the end of a thread loose, lack-phase caused by electrical burn. Cable appearance is damaged, if it should be timely replacement of added protection, jacket, to prevent damage to the fuselage charged wire is dangerous leakage occurs.

     To sum up, in a timely manner machine equipment maintenance and maintenance machinery such as precision and thus to extend the service life, that is to increase the value of your device, and you try to do it?

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Par shuangyuan - 0 commentaire(s)le 15 juillet 2011

Classification and code non-ferrous metals

First, the classification of non-ferrous metals
(1) non-ferrous metals are divided into pure metals, light metals, precious metals, semi-metal and rare metal five. gas spring
(2) non-ferrous alloys
Divided by alloy system: heavy non-ferrous alloys, light non-ferrous metal alloys, precious metal alloys, precious metals alloys; use can be divided by alloy: deformation (pressure processing of alloy), cast alloy, bearing alloys, printing alloy, carbide , solder, alloy, metal powder and so on.
(3) non-ferrous materials
Classification by chemical composition: copper and copper alloy materials, aluminum and aluminum alloy materials, lead and lead alloy material, spring steel, nickel and nickel alloy materials, titanium and titanium alloy materials. When classified by shape, can be divided into: plate, strip, foil, tube, rod, line, type and other varieties.
Second, the product brands that way
(1) Nomenclature
Non-ferrous metal and alloy products, brands names, provides for the international elements of Chinese phonetic letters or symbols as a MeSH code, indicating their respective categories, such as that of aluminum with L or AL, T, or Cu indicated that copper. Keywords later, with the combination of ingredients in numerical order to represent the product category. Keywords that can be expressed product code-named after the state, characteristics, or the main ingredients, such as anti-LF (F) rust aluminum (L) alloy; LD for the forging (D) made of aluminum (L) alloy; LY for the hard- (Y) Al (L) alloy, these three keywords is aluminum alloy (L). Another example QSn Tsing (Q) the addition of copper in the main element tin (Sn) of a class; QAL9-4 for the Green (Q) of copper containing aluminum (AL), add the element Al composition of 9%, and other add elements of 4%, which is a bronze of two alloys Keywords (Q). Therefore, the product code is the standard (GB340-78) required MeSH phonetic alphabet, chemical element symbols and Arabic numerals to represent a combination of methods. Table 1 and Table 2:
Table 1, non-ferrous metals and alloys commonly used names and code elements
Name Code Name Code
Chemical element chemical element symbol phonetic alphabet code symbol phonetic alphabet code
Zinc Zn Cu CuT
ALL Aluminum Lead Pb
Magnesium MgM tin Sn
Antimony Sb Ni NiN
Titanium TiT Gold Au
Brass - H Ag Ag
Bronze - Q Cd Cd
Copper-nickel alloy - B Beryllium Be
Table 2 The name and code-specific non-ferrous alloys
Code name used by code name
LF rust aluminum magnesium alloy (deformation processing) MB
Forged aluminum alloy solder HI LD
Hard anodized aluminum nickel-NY LY
LC cell zinc plate aluminum super-hard XD
LT printed special aluminum alloy I
LQ printed aluminum brazing zinc plate XI
Oxygen-free copper TU RE Xt
Tungsten carbide cobalt metal powder F YG
Spray aluminum titanium cobalt tungsten carbide YT FLR
YZ cast tungsten carbide coating aluminum FLU
Titanium carbide thin aluminum FLX - (iron)-Ni-Mo carbide YN
Ultra-fine aluminum powder FLT purpose (universal) Carbide YW
Steel, chemical bonded carbide steel with aluminum YE FLG
Ch FM bearing alloy magnesium
Aluminum-magnesium casting alloy powder FLM Z
The status of non-ferrous metal and alloy products, processing methods, feature code, the use of the provisions of the Chinese phonetic letters. Such as thermal processing, R (heat), quenching of the C (quenched), not clad in B (not), fine particle X (small) and so on. But a few will, if the quality of the surface O (visualize that perfect) and so on.gas spring
Par shuangyuan - 0 commentaire(s)le 15 juillet 2011

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