44results about How to "Small stretch rate" patented technology

The embodiment of the invention provides a zinc alloy for manufacturing a die. The zinc alloy comprises the following components in percentage by weight: 5 to 22 percent of aluminum (Al), 0.005 to 0.03 percent of magnesium (Mg), 1 to 10 percent of copper (Cu), 0.05 to 0.5 percent of rare earth, 0.01 to 0.05 percent of boron (B), 0.05 to 0.2 percent of titanium (Ti), 0.05 to 0.2 percent of manganese (Mn) and the balance of zinc (Zn), wherein the weight percent sum of the components is 100 percent. The Al is an important element of the zinc alloy, and has good heat resistance and casting property. The Cu is an important enhancing element in the zinc alloy, the Cu and the Zn can form a CuZn3 metal compound, and the Cu can improve the strength and plasticity of the zinc alloy. The Mg, Re, B, Ti, Mn and the like serving as trace additive elements can play a role in thinning crystal grains and reducing component segregation and 'bottom shrinkage' phenomenon. The hardness and abrasion resistance are further improved; and on the premise of ensuring that the tensile strength is basically not changed, the dimensional stability, die making precision, corrosion resistance and the like of the alloy are obviously improved.

The invention discloses an easy-to-use ink-jet heat sublimation transfer paper. The paper comprises an ink holding layer, a paper fiber binding layer, a base paper layer and a back coating. The top layer of the transfer paper is the ink holding layer, the bottom layer of the transfer paper is the back coating and the paper fiber binding layer and the base paper layer are arranged between the ink holding layer and the back coating or a mixture layer of the paper fiber binding layer and the base paper layer is arranged between the ink holding layer and the back coating. The base paper layer is coated with the paper fiber binding layer through a coating machine or through a glue applicator in a paper machine in base paper layer preparation. Only one layer of the ink holding layer with very small thickness can prevent a dispersed dye from permeating into paper fibers and has an ink dye holding capacity which is 1.5-2.5 times that of carboxymethylcellulose and is more than 5 time that of polyvinyl alcohol so that a transfer rate is effectively improved. The coating has pore number greater than or equal to 20 per square millimeter so that an ink absorption capability is improved. Through use of the dried filling material in the transfer paper, a drying rate is fast in printing, a transfer paper shrinkage ratio is low, transfer paper water absorption arching-caused friction on a printer is avoided in ink-jet printing and the transfer paper can be used easily.

The invention is about a sort of lightweight partition wall board. It is made from magnesium oxide, magnesium chloride, dry rock powder, flyash, French chalk, high alumina cement, ferrous sulfate, tertiary sodum phosphate, phosphoric acid solution and sawdust. The lightweight partition wall board has the following advantage: the fist, it can save energy, reduce cost and have no pollution. The second, the board has fine intensity, good water resistance and resistance to aging. The third, it has small shrinkage, get over the problem that appear when the boards join. The fourth, the partition wall board no longer distort for using inorganic material and controlling the quality of material. Lastly, it has good shock resistance, waterproof, fire resistance, soundproofing and it get over the partition wall board to be yellow.

The invention discloses diaphragm paper for a mercury-free alkaline zinc-manganese dioxide cell, and a preparation method of the diaphragm paper, and belongs to the technical field of fiber-containing paper and a preparation method thereof. A sizing agent comprises the following raw materials in parts by weight: 40-55 parts of superfine nylon fibers, 25-35 parts of tencel fibers and 20-30 parts of pulp fibers; the sizing agent is prepared by dispersing a dispersing agent by adopting a papermaking machine wet-process papermaking technology. The three types of fibers are mixed to prepare an alkaline zinc-manganese dioxide cell diaphragm, so that not only can the physical strength performance of the diaphragm paper be improved and the relatively good alkaline absorption performance can be guaranteed; due to the improvement of the strength of the diaphragm paper, the usage amount of the sizing agent can be properly reduced, so that the quantitation and the thickness fluctuation of the diaphragm paper can be favorably stabilized, and thus guarantee for meeting the use of the mercury-free alkaline zinc-manganese dioxide cell can be provided.

The invention belongs to the field of the packing materials and relates to a polymer packing belt material. The polymer packing belt material is composed of the following components in parts by weight: 3-10 parts of 4-methyl-1-amylene, 4-9 parts of 2-hexene-1-alcohol, 9-17 parts of polystyrene, 7-12 parts of polyethylene, 4-7 parts of polyester fiber, 2-6 parts of pentaerythritol and 5-8 parts of stearic acid. The preparation method comprises the steps of mixing, squeezing, molding, winding and the like. As the components of the packing belt material are reasonably optimized and the 4-methyl-1-amylene and the 2-hexene-1-alcohol are added, the tensile strength of the packing belt material is effectively and remarkably improved to the range from 213MPa to 245MPa, and the elongation at break is relatively low; the polymer packing belt material is only 65% to 74%, and thus has relatively low deformation and small shrinkage ratio under external pressure.