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真空电热管

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真空电热管

管道加热器|加热圈|规格|种类|定制

管道加热器|加热圈|规格|种类|定制

在真空加热中,可以采用电阻加热,感应涡流加热,激光辐照加热等方式。传热基本采用辐射传热和传导传热。目前常用的有微波加热,射频加热,感应加热。 红外线加热
In the vacuum heating, can be heated by resistance, induction eddy current heating, laser irradiation heating method. Heat transfer by radiation heat transfer and heat conduction. The microwave heating, heating, induction heating. Infrared heating
红外线可分为三部分,即近红外线,波长为0.75~1.50μm之间;中红外线,波长为1.50~6.0μm之间;远红外线,波长为6.0~l000μm 之间。红外线可分为两类:近红外线与远红外线。近红外线或称短波红外线,波长0.76~1.5微米,穿入人体组织较深,约5~10毫米;远红外线或称长波红外线,波长1.5~400微米,多被表层皮肤吸收,穿透组织深度小于2毫米。短波红外线的频率最高,温升较快。ν=λf 红外线烤漆使用辐射加热的方式,红外线烤灯在给油漆表面加热的过程实际是一个热辐射渗透过程,这样在烘烤过程中会让油漆里的水份和溶剂最先蒸发掉,不会使得干固油漆层产生气泡和小孔,所以烘烤效果会更好,能有效地提高油漆表面质量,增加漆膜强度更高且韧性更好。  短波红外烤漆房,他的波长具有很强的渗透力,短波红外线,也叫(近红外),直入漆层,是涂漆层机体(车身外壳)的温度迅速升高产生自发热效应,涂漆层中的水分(或溶剂)则迅速由内向外挥发,油漆涂料化学的振动频率相同时,油漆涂料化学键因发生共振而加大聚合基因的振幅,使交联聚合的几率增大,靠其分子的化学反应,加速漆涂层的固化(由里及表同谓共振)。 短波红外烤漆房漆主要优点:烤漆效率高,其涂层表面的光泽度与丰满度高,镜物更加清晰,涂层附着力强,操作简单安全性高。所以,短波红外汽车喷烤房发明问世,是二十一世纪的“绿色产品”,有“微波炉”的美誉之称,是必然的换代产品。  红外线加热优势及效率,红外线乾燥加热方式在近几年来则以惊人的发展速度被接受,并被实际使用于各层次,主要是红外线干燥方式有下述之优点:  1. 具有穿透力,能内外同时加热。  2. 不需热传介质传递,热效率良好。  3. 可局部加热,节省能源。  4. 提供舒适的作业环境。
Infrared can be divided into three parts, namely, the near infrared wavelength, between 0.75 ~ 1.50 μ m; infrared, between the wavelength of 1.50 ~ 6 μ m; far infrared wavelengths, between 6 ~ l000 μ M. Infrared can be divided into two categories: near infrared and far infrared. Near infrared, short wave infrared, the wavelength of 0.76 ~ 1.5 micron, penetrate human tissue is deep, about 5 ~ 10 mm; far infrared or long wavelength infrared light, the wavelength of 1.5 to 400 microns, by skin absorption, tissue penetration depth is less than 2 mm. The highest frequency of short wave infrared, temperature rise. V = λ f infrared paint using radiation heating, infrared heat lamp to paint surface heating is a heat radiation penetration process, this will make the paint in water and solvent was evaporated in the baking process, does not make the dry paint layer of bubbles and holes, so the baking effect better, can effectively improve the paint surface quality, higher strength and toughness increase film better. Making short wave infrared paint room, his wavelength has a strong penetration, short wave infrared, also called (near infrared), straight into the paint, paint layer is the body (body shell) the rapid temperature rise of self heating effect, coating of water (or solvent) quickly from inside to outside volatile, paint the vibration frequency of the same chemical paint, paint chemical bond due to resonance and increase the amplitude polymerization genes, that the probability of polymerization increases, the molecules by chemical reaction, curing acceleration of paint coating (from the inside and the table with that resonance). Shortwave infrared paint paint paint main advantages: high efficiency, its gloss and plump coating on the surface of high degree, mirror more clear, coating adhesion, simple operation and high safety. So, the shortwave infrared car spray baking real invention, is the twenty-first Century “green products”, “microwave” reputation is known, is the inevitable product of. Making infrared heating advantage and efficiency, infrared drying heating in recent years with the astonishing development speed is accepted, and the actual use at all levels, mainly is the infrared drying method has the following advantages: making 1 penetrating, inside and outside at the same time heating. Making 2 without heat transfer medium to transfer, good thermal efficiency. Making 3 local heating, energy saving. Making 4 provide comfortable working environment. Ma
5. 节省炉体的建造费用及空间,组合、安装及维修简单容易。  6. 乾净的加热过程。
5 save construction cost and space of the furnace body, combination, easy installation and repair. The heating process of making 6 clean. Making
7. 温度控制容易、且升温迅速,并较具安全性。  8. 热惯性小,不需要暖机,节省人力。
7 easy temperature control, and rapid heating, and more safety. Making 8 thermal inertia small, do not need to warm up, save manpower.
辐射加热与干燥包括红外线、紫外线、微波/射频、电子束与雷射等,其中红外线加热干燥是利用电磁辐射热传原理,以直接方式传热而达到加热干燥物体的目的,从而避免加热热传导导致的能量损失,有益能源节约,同时红外线因有产生容易,可控性良好等特质,而有加热迅速、干燥时间短、生产力提高,产品品质改进及设备空间节省等优点。 微波加热
Radiation heating and drying including infrared, ultraviolet, microwave / RF, electron beam and laser, which is based on the principle of infrared drying from electromagnetic radiation to heat, heat transfer in a direct way to heating and drying of the object, so as to avoid the heat conduction due to loss, good energy saving, while the infrared due to produce easily the characteristics, good controllability, and rapid heating, short drying time, productivity, product quality improvement and equipment space saving etc.. Microwave heating
微波是一种高频率的电磁波,其频率范围约300MHz至300GHz之间。它具有波动性、高频性、热特性和非热特性四大基本特性。微波作为一种电磁波也具有波粒二象性.微波量子的能量为1 99×l0 -25~ 1.99×10-22j.它与生物组织的相互作用主要表现为热效应和非热效应。微波能够透射到生物组织内部使偶极分子和蛋白质的极性侧链以极高的频率振荡,引起分子的电磁振荡等作用,增加分子的运动,导致热量的产生。微波还能够对氢键、疏水键和范德华产生作用,使其重新分配,从而改变蛋白质的构象与活性。生物体的非热特性生物效应是微波的重要特性之一,它已成为医学、细胞学等方面研究的一个重要方面,同时它也能为微波理疗或微波手术等方面提供理论依据 随着人们对微波加热技术认识的深入,它已引起了许多科学工作者的关注,并在一些方面进行了深入而广泛的研究。
Microwave is an electromagnetic wave of high frequency, the frequency range of approximately 300MHz to 300GHz. It has fluctuations, frequency, thermal and non thermal characteristics of four basic characteristics. Microwave is an electromagnetic wave also has wave particle like two. Microwave quantum energy of 1 99 × l0 -25 ~ 1.99 × 10-22j. it tissue interactions mainly for thermal effect and non thermal effect. Microwave can be transmitted to the tissue so that the polar side chains and protein dipole molecules with high frequency oscillations, caused by electromagnetic oscillation of molecules, increase the motion of the molecules, causing heat. Microwave can also have an effect on the hydrogen bond, hydrophobic bond and Fan Dehua, to re allocation, which changes the conformation and activity of protein. Non thermal biological effect of organism is one of the important characteristics of microwave, it has become one of the important aspects of medicine, cytology and so on, at the same time it can also for microwave or microwave operation so as to provide theoretical basis with awareness of microwave heating technology deeply, it has attracted a lot of attention, and the in-depth and extensive research in some aspects.
微波对生物体的热效应是指由微波引起的生物组织或系统受热而对生物体产生的生理影
Thermal effect of microwave on organism refers to the physical image by microwave induced biological organization or system and heating on organisms
响.热效应主要是生物体内有极分子在微波高频电场的作用下反复快速取向转动而摩擦生热;体内离子在微波作用下振动也会将振动能量转化为热量;一般分子也会吸收微波能量后使热运动能量增加。 微波是一种电磁波。这种电磁波的能量不仅比通常的无线电波大得多,而且还很有”个性”,微波一碰到金属就发生反射,金属根本没有办法吸收或传导它;微波可以穿过玻璃、陶瓷、塑料等绝缘材料,但不会消耗能量;而含有水分的食物,微波不但不能透过,其能量反而会被吸收。 感应加热
Ring. Heat effect is the organism polar molecules in microwave field under the effect of repeated rapid orientation rotation and friction; vibration in ion under microwave irradiation will vibration energy is converted into heat; general molecules can also absorb the microwave energy to heat energy is increased after exercise. Microwave is an electromagnetic wave. This electromagnetic energy is not only than radio waves are usually much larger, but also a strong “personality”, microwave an encounter took place reflective metal, the metal there is no way to absorb or transfer it; microwave can pass through glass, ceramics, plastics and other insulating material, but it will not consume energy; which contain water of food, microwave not only can not through, its energy but will be absorbed. Induction heating
感应加热,利用电磁感应原理,把坯料放在交变磁场中,使其内部产生感应电流,从而产生焦耳热来加热坯料的方法。 射频加热 由于频
Induction heating, using the principle of electromagnetic induction, the blank is arranged in an alternating magnetic field, the induced current method, so as to produce Joule heat blank. RF heating due to frequency

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