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Ask：What is the radiator extrusion process?
1, for high density teeth and tongue than the mold test mode, the
first aluminum rod must be 150-200mm short aluminum rods or pure
aluminum rods.
2, before the test mode, you must adjust the extrusion center,
squeeze the shaft, Sheng Dong tube and die base outlet in a center line.
3, in the test mode and the normal production process, aluminum rod heating temperature to ensure that between 480-520 ℃.
4,
the mold heating temperature according to the conventional mold
temperature, control at 480 ℃ or so, the diameter of 200mm below the
flat mold holding time of not less than 2 hours, if the shunt mold
insulation in more than 3 hours; diameter greater than 200mm above the
mold insulation 4-6 Hour to ensure that the mold core temperature and external temperature uniformity.
5, in the test mode or before production, you must use a clear
cylinder pad to clean up the drum barrel, and see whether the normal
operation of the extruder empty.
Six, try or start production, the extruder automatically shut down, each switch to zero. From
the minimum pressure began slowly from the pressure, the material about
3-5 minutes, the aluminum filling process to control the main pressure. Pressure control in the 100Kg / cm2 or less, the ammeter data within
2-3A, generally 80-120Kg / cm2 can be expected before, can be slowly
accelerated, the normal production of extrusion pressure to less than
120 Kg / cm2 pressure.
7, mold in the test or production process, such as the discovery of
blocking, partial teeth, such as the speed of deviation is too large to
immediately stop, and point off the way unloading, to avoid die
scrapped.
8,
in the test mode or production process, the outlet must be smooth, pad
or clamp material according to the expected reasonable grasp of the
situation. At any time to observe the abnormal situation, timely processing, the downtime to immediately stop.
9, straightening process, we must carefully check before and after the
change, the operation of norms, moderate force, strict product quality.
10, in accordance with the requirements of the production schedule
reasonable length, sawing, the sawtooth feeding speed can not be too
fast, to avoid injury to the end, the end must be clamped, remove the
flash and burr.
11, loaded baskets to regulate, including the pad to be placed reasonable, to avoid damage profiles.
12, profile aging temperature control in the 190 ± 5 ℃, insulation 2.5-4 hours, baked after the air-cooled.
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Ask：What are the precautions for routine operation of CNC machining?
In the late 1940s, the United States began to study CNC machine tools, in 1952, the United States Massachusetts Institute of Technology (mit) servo laboratory successfully developed the first CNC milling machine, and put into use in 1957. The first cnc processing center in 1958 by the United States Carney - Trelake first developed successfully. It is based on the CNC horizontal boring and milling machine to increase the automatic tool changer, so as to achieve a workpiece after clamping a milling, drilling, boring, reaming and tapping and other processes of centralized processing. This is a major breakthrough in the development of manufacturing technology, marking the manufacturing sector in the beginning of the era of CNC lathe processing. CNC lathe processing is the basis of modern manufacturing technology, the invention for the manufacturing industry, with epoch-making significance and far-reaching impact. The world's major industrial developed countries attach great importance to CNC lathe processing CNC lathe processing technology research and development.
CNC machining is refers to the CNC machine tools for parts processing process. CNC machine tools is a computer to control the machine, used to control the computer computer, whether it is a dedicated computer, or general-purpose computers are collectively referred to as CNC system.
CNC machine tool movement and auxiliary action are controlled by the NC system issued by the instructions, and CNC system instructions by the programmer according to the workpiece material, processing requirements, machine characteristics and system requirements of the instruction format (CNC language or symbol) Compiled. CNC system according to the program instructions to the servo device and other functional parts issued a run end or information to control the various movements of the machine. When the machining process of the part is finished, the machine will automatically stop. Any kind of CNC machine tools, in its numerical control system if there is no input program instructions, CNC machine tools can not work. The control of the bed generally includes the start and stop of the machine; the start and stop of the spindle, the direction of rotation and the speed change; the direction, speed and mode of the feed movement; the selection of the tool, the compensation of the length and the radius; Liquid opening, closing and so on.
CNC machining process from the overall agreement is consistent, but also had a significant change. Machining method for controlling the displacement of parts and tools with digital information.
CNC machining is an effective way to solve the problems of variable variety, small batch, complex shape, high precision and high efficiency and automatic processing. The machining center was originally developed from CNC milling machines.
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Ask：China's metal mold processing tool production and marketing situation how?
Hardware products are widely classified, China has gradually become the world's metal processing power and export power, and has become one of the world's largest hardware production, has a broad market and consumer potential. International Mold Association Secretary-General Luo Baihui that hardware mold is an important part of China's hardware industry, the 12th Five-Year period is China's response to major changes in the development environment at home and abroad to accelerate the goal of building a moderately prosperous society a key period, but also China's mold manufacturing industry Healthy development of the critical period, domestic and foreign environmental uncertainties, although many, but China's economic development is still high growth period, China's mold in the international mold market, the comparative advantage is still there, the domestic mold market is expected to continue to be optimistic, mold industry development Showing a big trend.
With more and more multinational companies to enter China, China's local advantages of hardware companies are being challenged. China's metal mold enterprises, especially the growth of enterprises must be sober, we must firmly grasp the strategic development opportunities for their own set up a reasonable development goals. Can not counter-current, and only the road to death. Business in the end is the pursuit of profit maximization or for the customer to create value or for the staff to benefit? These are the business goals, but fundamentally speaking, if we can only choose one of the most important goals, then the value is Enterprises to pursue the highest goal.
Hardware mold accuracy will be higher and higher. 10 years ago, the accuracy of precision molds is generally 5 microns, now has reached 2 to 3 microns, and soon 1 micron precision molds will be listed. This requires super finishing. Hardware processing mold industry will become increasingly large. This is due to the increasing size of the mold-forming parts and the high productivity requirements of the development of a multi-cavity caused by the cavity. Mold industry multi-functional composite mold will be further developed. The new multi-functional composite mold in addition to stamping parts, but also bear the stacking, tapping, riveting and locking assembly tasks, the performance requirements of steel is also getting higher and higher.
