Application of high frequency induction heating machine in cable manufacturing

High-frequency heating machine - full name "high frequency induction heating machine", also known as high-frequency induction heating equipment, high frequency induction heating equipment, high-frequency heating power supply, high frequency power supply, high frequency welding machine, high frequency induction heating machine, high frequency induction heater (welding), etc., it is mainly carried out on the metal induction heating (non-contact); To metal extremely fast heating, power saving, small volume, convenient installation, convenient operation, safe and reliable, fast heating, etc, the advantages of application range is very wide.As the Internet business, 3 g (third generation mobile communication technology) 3 rdgeneration business and the rapid development of multimedia applications, network business is rapidly expanding at the rate of exponential, which requires the network must have a high bit rate data transmission and large throughput cross ability. Coming of optical fiber communication technology, the huge potential of nearly 30 THZ bandwidth capacity brought thriving opportunity to communication, especially in the information superhighway, light penetrates the whole communication network technology, optical fiber communication has a tendency to advancing all-optical networks. Optical fiber communication in our country through the course of more than 20 years. Market is the lifeblood of the industry, the price is the lifeblood of enterprises, how to reasonably reduce the product cost, improve product quality, ensure that the user requirements, is the key of the companies. This article focuses on the traditional cable ladle injection glue way with new technology - high frequency induction heating.One, the principle of profileTwo widely used, high frequency induction heating machineHigh frequency heating function to rapid heating of all metals, such as: iron, steel, cast iron, stainless steel, copper, aluminum, tin, gold, silver, etc.1, hot forging industry - the whole parts forging, forging, drilling.2, welding, brazing - all kinds of metal products, cutting tool blade welding, copper welding (available in cable manufacturing steel with lap welding).3, - metal heat treatment quenching, tempering, annealing; Especially local treatment (in cable manufacturing industry can be used in the sheath material and metal band stripped).4, melting - casting small smelting smelting, precious metal smelting, laboratory.5, and other applications - powder coating, metal implants plastic, heating oil (in cable manufacturing industry can be used to cushion steel wire to wire to squeeze oil, impurities).Three, the application of traditional compared with the situation of high frequency welding, hot melt adhesive machineHigh frequency induction heating machine, belongs to the high frequency dielectric heating equipment. Puts the core of the ladle after the equipment is produced between the electrodes, using alternating current flow is curled up into a ring of conductor (usually a copper tube), the resulting magnetic beam, the steel strip is applied to longitudinally wrap the core through the copper pipe, magnetic beam will be well versed in the strip, in the direction of produce eddy current and magnetic beam from paying rotation (current), induction effect at this time, due to the resistance of the steel belt joule heat (1 R) square, make temperature rise sharply, this is the induction heating. In the steel belt, and the non-contact condition can be heated. (fever heat produced by the joule heat and magnetic hysteresis loss, but there are mainly caused by joule heat.) After the steel strip by high frequency heating, steel strip surface polyester film heat melting, take it steel strip using itself polyester film adhesive, steel strip lap block water. The outer sheath directly with polyester film adhesive, not only increase the steel belt and outer sheath bonding strength, and in addition to the ladle cable steel strip, hot melt glue laminating package problems frequently.According to the YD/T901-2001 core network with cable - gysts 4.3.2.2 in communication outdoor optical cable standard requirements.53 type adhesive sheath (including outer sheath) of aluminum or steel band and polyethylene jacket peel strength and lap overlapping between aluminum (or steel) and peel strength between should not be less than 1.4 N/mm, but in aluminum (or steel) with the following using filling or coating compound block water, aluminum or steel with a model, it is not required.Table 1 compare traditional hot melt adhesive machine and high frequency weldingFour, high frequency induction heating machine advantages and characteristicsHigh frequency induction heating machine advantages:1, can rapid heating: compared with other methods, in seconds can be heated to the required target temperature.2, local heating: heating steel belt, only through the polyester film on the surface of the steel strip heat melting within the cable on other parts without any damage.3, save energy, in addition to the work time, standby power can only, very reasonable.4, can be in a relatively stable temperature automatic operation: even if the operation is not enough skilled production personnel, also can ensure normal operation.5, green environmental protection: do not produce harmful substances.6, according to the quality of the heated object, heating time, temperature, and to adjust the output of high frequency.High frequency induction heating machine features:1, all solid state IGBT inverter and function adjustment, resonance soft switch double regulation and frequency automatic tracking technology, is the guarantee of high reliability;2, super small volume, for clients to save space for the production of 10 times;3, high efficiency and energy saving, full power range, high power factor and power efficiency;4, 1 ~ 20 KHZ broadband frequency automatic tracking adaptive, without the scene debugging;5, 100% full load, 24 hours of continuous work ability;6, choice of constant output voltage/constant power output control functions;7, frequency, power, voltage and current full display.Five, the test resultsAfter more than a month of tracking process test and detection, by high frequency induction heating machine processing without permeable performance before and after the cable sheath, no mold core accumulation effect happens, there is no jacket out of the bag. As well as the sheath and peel strength between steel belt sampling inspection, specific results are shown in table 2; Peel strength between steel strip lap for sampling inspection, specific results are shown in table 3. By high frequency induction heating machine did production of optical fiber cable full performance test and all testing qualified, not listed one test results.Six, the conclusionBelieve that through my introduction, you have to high frequency induction heating machine and the working principle, have more understanding. Through the comparison of two different methods, fully illustrates the high frequency heating machine in the application of fiber optic cable manufacturing advantages, believe in the near future will be more widely used.