5results about How to "Reduce internal cracks" patented technology

The invention provides a wood-carbon fiber ball rod. Through the combination of the wood blocks and the carbon fiber blocks, the technical problems that a billiard cue is prone to deformation, and the hitting precision is difficult to guarantee are solved. Comprising wood blocks and carbon fiber blocks, the carbon fiber blocks and the wood blocks are arranged at intervals in an attached mode, and the defined section is round to form the wood-carbon fiber ball rod. The section of the carbon fiber block is in a line shape, an L shape or a trapezoid shape to form a cross shape, and the carbon fiber block is arranged between the two fan-shaped wood blocks at intervals and connected with the wood blocks in a gluing mode. The wood blocks are a plurality of equally-divided fan-shaped longitudinal blocks, the edges of the wood blocks are attached to each other, the sections of the wood blocks form a circle, and the wood blocks are cone-shaped and serve as billiard cue bodies. Through mutual cooperation of the fan-shaped wood blocks and the carbon fiber blocks, energy conservation and environmental protection are achieved, the manufacturing cost is reduced, the deformation quantity of the billiard cue is reduced, manpower and material resources are saved, the ball hitting accuracy is improved, the maintenance cost is reduced, the service life of the billiard cue is prolonged, the billiard movement is more accurate, and the billiard cue is suitable for being used as the billiard cue.

The present application belongs to the technical field of food baking, and provides a mousse cake layering forming method, comprising: activating the upper surface of the Nth layer of mousse layer which has been solidified, removing the surface condensate frost and forming micro roughness; adjusting the temperature of the N+1th layer of mousse paste to be filled to be within ±3℃ of the surface temperature of the Nth layer of mousse layer; using a low shear force mode, filling the N+1th layer of mousse paste after temperature adjustment into the Nth layer of mousse layer along the inner wall of the mold or through a flow guide device to obtain a multi-layer mousse assembly; precooling the multi-layer mousse assembly at 4-8℃ for 10-20min, and then freezing and shaping at 18-25℃.

The invention discloses steel H08Mn2E for a submerged-arc welding wire and a preparation method thereof.The steel for the submerged-arc welding wire mainly comprises, by mass, 0.05%-0.10% of C, smaller than or equal to 0.07% of Si, 1.50%-1.90% of Mn, smaller than or equal to 0.015% of P, smaller than or equal to 0.010% of S and 0.35%-0.45% of Ni, the quality of a wire rod of the steel H08Mn2E for the submerged-arc welding wire is effectively improved, the mechanical property and the steel purity of the wire rod are guaranteed through the low-sulfur-phosphorus high-manganese component design, and the steel quality of the submerged-arc welding wire is improved. And a proper amount of Ni element is added to improve the weld toughness and ensure the weld quality. In the preparation method, crystallizer electromagnetic stirring is adopted for continuous casting, the surface quality of a casting blank is improved, and internal cracks and center defects are reduced; a metallographic structure composed of ferrite and pearlite is obtained through a steel rolling stelmor controlled rolling and controlled cooling process in combination with a slow cooling process; not only is the mechanical property of the H08Mn2E wire rod guaranteed, but also the drawing property of the H08Mn2E wire rod is guaranteed.

This invention relates to a method for forming large-size thin-plate ceramics, a forming mold, and the ceramic itself, belonging to the field of ceramic material forming technology. The method includes: filling, floating film floating, pressurization, depressurization-demolding-depressurization, and isostatic pressing steps. The depressurization-demolding-depressurization step includes: gradually depressurizing the upper pressure head while retaining a pre-set pressure; demolding, keeping the sample clamped between the upper and lower pressure heads, and lowering the floating mold until the sample is completely removed; and secondary depressurization: slowly reducing the pre-set pressure to zero, and retracting the upper pressure head to its initial position after leaving the sample. This invention effectively solves the problems of easy cracking, uneven density, difficult demolding, and easy deformation and damage during isostatic pressing of large-size thin-plate ceramics during the forming process, thereby enabling the preparation of high-quality, high-density, and uniform large-size thin-plate ceramic products.

The invention provides a carbon block for slicing and a forming method thereof, and relates to the technical field of carbon block production, the raw materials comprise a first coke material, a second coke material, a third coke material, a fourth coke material, a fifth coke material, asphalt and modified powder; the modified powder is graphite powder, and the final temperature of a flame path is controlled to be 1140-1160 DEG C in the roasting process. According to the preparation method, the graphite powder modified powder is added in the carbon block forming process, meanwhile, the roasting process is adjusted, and the final temperature of a flame path is increased, so that the resistivity of the carbon block for slicing is as low as 50 omega.m, and the carbon block serves as a carrier for calcining a negative electrode material, so that energy is saved in the calcining process.