4 - chloro cinnamic acid

4 - chloro cinnamic acid：The superior materials to protect the over-temperature electric appliance According to the statistics, over- temperature has always occupied an important position.in the electrical damagereason ,Therefore,over-temperature protection device for electrical has almost become the necessary component in all appliances . At present, most of the electrical over temperature protector are hot melt type over-temperature protection.We called it fuse in another word, the principle is that when the fuse current through the exceeded limit value, the fuse fused because the temperature rise, in addition of below the rated capacity,the heat generation and heat balance,the fuse temperature did not reach the melting temperature, it will not break. Facts prove that, fuse to protect electrical effect is very obvious. However, this kind of fuse protection, it need to be replaced once the fuse break, it’s troublesome operation and economy. In order to overcome this fuse protection faults, some people have invented a relay type over-temperature protection device. Relay protection at rated temperature can automatically power off, disconnect just press the reset lever can be used, without replacement, with simple operation and economy. The key to relay protection is the thermal particulate matter of 4 chloro cinnamic acid. 4 - chloro cinnamic acid is the colorless crystals,two kinds : cis and trans. Soluble in ethanol, CIS trans melting point melting point of 110.5 DEG C, 249-250 C. The researchers found that, 4 - chlorine cinnamic acid and other substances by complex, can arbitrarily adjust the melting point range at the rated operating temperature range of 70 to 250 DEG C, rated current of 0.5A ~ 25A. It is reported, Guangdong city of a electrical company, has the perfect solution for 4 - chlorine cinnamic acid used in electrical overtemperature protection for all technical problems, at present ,we proceed to product a large batch production of 4 chloro cinn....

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