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According to the technical scheme, the adjustable slitting equipment for jujube cake production is characterized in that the adjustable slitting equipment comprises a table body, a supporting frame is fixedly installed on the top face of the table body, a connecting plate is arranged in the supporting frame, a tool apron is fixedly installed on the bottom face of the connecting plate, a plurality of clamping holes are formed in the top face of the tool apron, and the clamping holes are formed in the bottom face of the tool apron. Clamping holes are formed in the top face of the tool apron at equal intervals, cutting knives are clamped in the clamping holes, by arranging the cutting knives, through the clamping design of the cutting knives, the cutting knives can be dismounted or mounted according to needs so as to adjust the distance between every two adjacent cutting knives, and then the specification of cut jujube cakes is adjusted; and a sliding plate is arranged, the jujube cakes can be placed on the sliding plate, the sliding plate only needs to be pulled out during feeding, the sliding plate is pushed into the supporting frame after feeding is completed, then the device can complete cutting operation, and the convenience of the device is improved.

The invention relates to the technical field of preparation of electronic ceramic components, in particular to a whole-series lead-free barium titanate thermistor with the Curie point of 60-125 DEG C and a preparation method of the whole-series lead-free barium titanate thermistor. The whole-series lead-free barium titanate thermistor is prepared from the following raw materials in parts by mole: 0.99 part of a frit material, 0.01 part of sodium bismuth titanate and 0.001-0.008 part of lithium carbonate, the frit material is prepared from the following components in parts by mole: 0.669 to 0.868 part of barium carbonate, 0.10 to 0.181 part of calcium carbonate, 0.011 to 0.153 part of strontium carbonate, 0.0023 to 0.0032 part of yttrium oxide, 0.002 to 0.01 part of aluminum oxide, 0.0005 to 0.0012 part of manganous nitrate, 0.008 to 0.02 part of silicon dioxide and 0.992 to 1.3 part of titanium dioxide. According to the invention, BNT and strontium titanate are added at the A site at the same time, and lead titanate is replaced by BNT, so that the lead-free whole series of thermistors at the temperature of 60-125 DEG C is realized.