5results about How to "Good extensibility" patented technology

The utility model provides a paper composite yarn with unequal twist. The paper composite yarn comprises a paper yarn, the first modified polyester supercool multifilament and the second modified polyester supercool multifilament are sequentially wrapped on the outer surface of the paper yarn from inside to outside, the twisting direction and the wrapping twisting direction of the first modified polyester supercool multifilament are both opposite to the twisting direction of the paper yarn, the twisting direction and the wrapping twisting direction of the second modified polyester supercool multifilament are both the same as the twisting direction of the paper yarn, and the first modified polyester supercool multifilament and the second modified polyester supercool multifilament are arranged on the outer surface of the paper yarn. The twist of the paper yarn, the twist of the first modified polyester supercool multifilament and the twist of the second modified polyester supercool multifilament are sequentially reduced, and the coating twist of the first modified polyester supercool multifilament and the coating twist of the second modified polyester supercool multifilament are sequentially reduced.

This invention provides an electrolytic additive composition and its application method. The electrolytic additive composition comprises the following components: a dithiopropanesulfonate accelerator; a polyethylene glycol inhibitor; a sodium saccharin derivative; a hydroxamic acid complexation regulator; and quaternized polyethyleneimine. The method for preparing high-strength electrolytic copper foil using the electrolytic additive composition is characterized by the following steps: adding the electrolytic additive composition to a copper sulfate-based electrolyte and mixing it evenly to obtain an electrolytic working solution; using the electrolytic working solution, performing electrolytic deposition on a cathode roller to obtain a deposited copper layer; and sequentially cleaning, drying, and tension conditioning the deposited copper layer to obtain a high-strength electrolytic copper foil product that, while maintaining high tensile strength, achieves uniform grain structure, optimized residual stress distribution, and inhibits abnormal grain growth, significantly improving the elongation performance and rolling stability of the copper foil and reducing the risk of strip breakage.

The invention discloses an aluminum-titanium intermediate alloy wire rod for grain structure regulation and control, the intermediate alloy comprises the following raw materials in percentage: 5.5-6.5 wt.% of titanium, 0.1-0.3 wt.% of boron, 0.1-0.5 wt.% of rare earth element and the balance of aluminum, in the preparation process of the intermediate alloy, the intermediate alloy can be added into molten aluminum in a mode of continuous addition in a furnace or added through a proton diffuser, so that continuous and uniform addition is realized; the method is suitable for modern continuous production, the number of effective nucleation particles in molten aluminum is increased, through online adding of a proton diffuser, particles in intermediate alloy are released in a high-activity state, the grain refinement effect is enhanced, stability is improved, the core surface grain size difference of a casting blank is reduced, and the uniformity and extensibility of the internal structure of the aluminum alloy are improved; and the high-activity particles can preferentially act with electrolyzed or impurities in the molten aluminum to promote the electrolyzed or impurities to gather and float upwards, so that the cleanliness of the molten aluminum is improved, and the defects of electrolyzed or impurities are reduced.

The application discloses a screw rod body type telescopic tension-resistant anchor rod and relates to the technical field of anchoring, which comprises an anchor rod head, a screw rod connected with the anchor rod head, a straight rod connected with the screw rod, a reduced diameter sleeve sleeved outside the straight rod, and a slotted tension-resistant sleeve ring sleeved outside the reduced diameter sleeve; the reduced diameter sleeve comprises a first constant diameter section and a first reduced diameter section which are connected with each other; a first expansion nut matched in size is arranged at the connection position of the first constant diameter section and the first reduced diameter section; the inner diameter of the first reduced diameter section changes in a narrowing manner, and the slotted tension-resistant sleeve ring is sleeved outside the first reduced diameter section and is used for being forced to be opened when the first expansion nut moves into the first reduced diameter section; therefore, the scheme utilizes the screw rod to increase the bonding strength and the anti-slippage performance between the screw rod and the grouting body, utilizes the cooperation of the reduced diameter sleeve and the slotted tension-resistant sleeve ring, realizes the effects of preventing pulling and slippage failure and increasing the tension-resistant resistance, and thus practically solves the problem that the prior art is easily pulled and broken due to insufficient extension.

The invention discloses modified asphalt and a preparation method thereof. The modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt; 0.5 to 4 parts of a solubilizer; 4-6 parts of a polymer modifier; 4-8 parts of a high-viscosity modifier; 0.5 to 1 part of modified composite fiber; and 0.2 to 0.4 part of a stabilizing agent. The modified asphalt has the characteristics of high viscosity and high elasticity, and the low-temperature performance and the storage stability of the asphalt can be improved.