摘要:
A process for preparing voltage non-linearity type resistors comprises pre-sintering a basic composition comprising X mole % of ZnO and (100 - X) mole % of Fe 2 O 3 (wherein 40 ≦ X ≦ 60), at a temperature no lower than 700°C, adding to the pre-sintered material 0.01 - 40% by weight of at least one of V 2 O 5 , Bi 2 O 3 , MgO, Al 2 O 3 , MoO 3 , Sb 2 0 3 , SiOz, NiO, SrO 2 or PbO, and sintering the resulting mixture.
摘要翻译:一种用于制备电压非线性型电阻器的方法包括预先烧结包含X摩尔%的ZnO和(100-X)摩尔%的Fe 2 O 3(其中40≤X= 60)的碱性组合物,温度为 向预烧结体中加入0.040重量%的V 2 O 5,Bi 2 O 3,MgO,Al 2 O 3,MoO 3,Sb 2 O 3,SiO 2,NiO,SrO 2或PbO中的至少一种,并烧结所得的混合物。
摘要:
Phosphate glass powder is a curing agent for alkaline binders such as water glass or silica sol. The phosphate glass powder may be pre-treated with a substance such as calcium hydroxide that is capable of reacting in solution with a phosphoric acid ion to form an insoluble or scarcely soluble salt, to decrease the reactivity of the powder with the water glass and permit improved control of the pot life of the mixture. The cured compositions have good bonding strength and water resistance.
摘要:
A process for the production of glass sealed types PTC thermistors is disclosed wherein a positive temperature coefficient semiconductor ceramic material (1) is sealed in a glass (4) having a softening point of no higher than 560°C in the presence of air, oxygen or an air/oxygen mixture.