1294results about How to "Reduce toughness" patented technology

The present invention relates to a curable composition having an oligomer, at least one monomer, and an amount of a substantially non-reactive oligomeric additive. The substantially non-reactive oligomeric additive is present in an amount effective to yield a cured product having a fracture toughness value that is higher than the fracture toughness value of a cured product of an otherwise identical composition lacking the non-reactive oligomeric additive. The present invention also relates to coated optical fibers, optical ribbons or bundles, and telecommunication systems having the curable composition.

The invention relates to a method for comprehensively treating the ecological environment of a coal gangue hill, which belongs to the field of mineral waste treatment and ecological environment restoration. The method mainly solves the problems of fire extinction, fire prevention and vegetation construction of the coal gangue hill. The method comprises the steps: the on-site reconnaissance of the coal gangue hill is carried out, and a construction operation plan is established; with fire prevention as principal and the combination of fire prevention and fire extinction, the fire prevention is crucial and is combined with the fire extinction, a thin layer of slurry is firstly sprayed on the coal gangue hill by a mechanical method to completely seal to form a sealing layer (8), transition slurry is sprayed on the sealing layer (8) to completely cover the sealing layer (8) to form a transition layer (9), slurry containing grass-shrub vegetation is spayed on the transition layer (9) to completely cover the transition layer (9) to form a planting layer (10); the contour line girdle band type operation in the spraying process is carried out from bottom to top to gradually and completely cover the hill, and different operating modes are selected according to practical conditions. The invention can not disturb the structure of the coal gangue hill, takes the fire prevention as the principal, combines the fire prevention with the fire extinction, has good and durable fire prevention effect, uses reliable and effective fire prevention and fire extinction measures as guarantee conditions to construct the planting layer, adopts grass-shrub plants, carries out hill sealing management and ensures vegetation restoration; in addition, the method uses the prior specialized mechanical devices to carry out construction operation, is easy to implement, has little difficulty, high efficiency and low investment and can ensure treatment effect.

A flux cored wire for duplex stainless steel and a manufacturing method thereof are provided. The flux cored wire can include a sheath and a flux filled into the sheath. The flux cored wire comprises about 24.0-30.0 wt % Cr, about 7.0-10.5 wt % Ni, about 2.0-4.0 wt % Mo, about 0.10-2.50 wt % Cu, about 0.40-1.00 wt % Si, about 1.5-3.0 wt % Mn, about 0.10-0.30 wt % N compound (converted value of N), and the remainder including Fe and inevitable impurities on the basis of the total weight of the wire. The flux comprises about 6.50-12.00 wt % of TiO2+SiO2+ZrO2+Al2O3, about 0.10-0.50 wt % of Li2O+K2O+Na2O, about 0.10-2.00 wt % of the other oxides, and about 0.10-0.50 wt % of metal fluoride (converted value of F) on the basis of the total weight of the wire. The flux can be filled into the sheath at a ratio of about 26-35%.

The invention discloses an aluminum alloy for a 480 MPa-class aluminum alloy oil pipe. The aluminum alloy comprises the following components by weight percent: 5.10-6.90% of Zn, 1.10-1.80% of Mg, 0.05-0.20% of Cu, 0.10-0.30% of Mn, 0.10-0.30% of Cr, 0.01-0.02% of Ti, 0.15-0.2% of Zr and the balance of Al and unavoidable impurities, wherein in the unavoidable impurities, the content of the Si is not greater than 0.15 of the total weight of the aluminum alloy and the content of Fe is not greater than 0.15 of the total weight of the aluminum alloy. The manufacture method of the aluminum alloy pipe comprises the following steps: (1) smelting the raw materials according to the weight percentage, performing external refining and casting to obtain a pipe blank; (2) performing three-stage homogenization treatment; (3) squeezing under high temperature; (4) performing twin-stage solid solution treatment, quenching and cooling; (5) prestretching and deforming; and (6) performing twin-stage artificial aging treatment.

The invention provides a process for production of aluminum alloy formings superior to conventional aluminum alloy forgings in mechanical strength at high temperature. A process for production of aluminum alloy formings by forging a stock consisting of a continuously cast rod made of an aluminum alloy, in which the aluminum alloy contains 10.5 to 13.5% by mass of Si, 2.5 to 6% by mass of Cu, 0.3 to 1.5% by mass of Mg, and 0.8 to 4% by mass of Ni and satisfies the relationship: Ni (% by mass) = [-0.68 OECu(% by mass) + 4.2(% by mass)] and which comprises the step (82) of preheat treatment of the stock, the heating step (87) of forging the stock, and the step (89) of postheat treatment of an aluminum alloy forming as the heat treatment / heating steps, with the step (82) involving the treatment of keeping the stock at -10 DEG C to 480 DEG C for 2 to 6 hours.

The invention relates to a chewing soft capsule shell, a chewing soft capsule drug and a prepration method thereof. The soft capsule shell consists of the following raw materials: 25-35 wt% of gelatin, 15-25 wt% of glycerol, 35-50 wt% of purified water, 0.1-1 wt% of sodium alginate, 0.1-1 wt% of carrageenan, 0.1-1 wt% of pectin, 1.5-2.5 wt% of sorbitol and 2-5 wt% of polyvinyl alcohol 400. The chewing soft capsule shell further comprises the following components: 0.1-0.3 wt% of sweetener, 0.2-0.4 wt% of acidifier, 0.001-0.01 wt% of spice, 0.001-0.01 wt% of preservative and 0.001-0.01 wt% of pigment. The soft capsule shell prepared by the raw materials has the advantages of small mechanical strength and toughness, and the invention further provides the method for preparing the chewing soft capsule drug.