Lead-free low-temperature alloy for making fuse core of thermal fuse and preparation method thereof
A thermal fuse and low-temperature alloy technology, applied in the field of alloys, can solve problems such as endangering human health and environmental pollution, and achieve the effects of narrow melting point range, uniform composition, and low cost
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[0016] The present invention is further described below in conjunction with specific embodiment; It should be emphasized that: for those of ordinary skill in the art, can improve or change according to the above description, and all these improvements and changes should belong to the appended claims of the present invention protected range.
[0017] A lead-free low-temperature alloy used to make a fuse core of a thermal fuse, the specific composition of which is Sn 61 Bi 35 Zn 4 , see the following table for specific ingredients and weight ratio:
[0018] chemical composition%
sn
Bi
Zn
sn 61 Bi 35 Zn 4
59.5-62.5
34-36
3.5-4.5
[0019] A method for preparing a lead-free low-temperature alloy for making a fuse core of a thermal fuse, the steps of which are:
[0020] Put metal tin into a stainless steel crucible according to the weight ratio, heat it on the electric furnace until the tin melts, and then add metal zin...
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