5results about How to "Achieve flatness" patented technology

The utility model provides a kind of formwork for station internal stand column diameter expansion construction, including steel hoop assembly and wooden formwork assembly;The wooden formwork assembly includes two semicircular templates, and two semicircular templates are formed into a whole circle by surrounding and splicing;The template includes melamine board layer, plywood layer, support batten layer and assembled batten layer from inside to outside in turn;The melamine board layer and plywood layer are fixed by adhesive method, for making the template inner surface even;The support batten layer is arranged around the outer periphery of the plywood layer by adhesive method, for whole circle support;The assembled batten layer is wrapped outside support batten layer for constraining the overall shape of the template;The steel hoop assembly includes a pair of semicircular steel hoops arranged in pairs, a pair of semicircular steel hoops are used for locking outside wooden formwork assembly, and each steel hoop assembly is arranged equidistantly along the length direction of wooden formwork assembly.The template has the advantages of improving construction efficiency and ensuring the appearance quality after stand column diameter expansion.

This utility model discloses a device for casting, including a conveying unit, a fixing unit, a pressure roller assembly, and a locking device. The pressure roller assembly includes multiple connecting parts and a pressure roller body. The pressure roller body is connected to the fixing unit via the multiple connecting parts. The locking device is mounted on the connecting parts and connected to the pressure roller body, and is driven to apply or release pressure to the pressure roller body. This design, with its pressure roller assembly including multiple connecting parts and a pressure roller body, and the locking device mounted on the connecting parts and connected to the pressure roller body, allows the pressure roller body to uniformly compress and compact the molten alloy by adjusting the pressure through the locking device. It can adapt to molten alloy requiring different pressures, thereby reducing air bubbles inside the molten alloy, achieving a smooth surface, and increasing the apparent density of the alloy particles formed by the cooling and hardening of the molten alloy. This, in turn, ensures the quality of the alloy particles and improves work efficiency.

The utility model provides a three-direction adjustable decorative line connecting system which comprises a first aluminum alloy decorative strip, a connecting notch is formed in the rear cavity wall of the first aluminum alloy decorative strip, a clamping notch is formed in the rear end of the first aluminum alloy decorative strip, and a first L-shaped adapter is movably connected into the clamping notch. According to the utility model, the two L-shaped aluminum alloy adapters are combined with the decorative moulding in a clamping manner, so that the anti-falling performance is provided; the decorative moulding can be adjusted in the horizontal direction through the arranged clamping notches; according to the three-direction adjustable decoration line connecting system, the aluminum alloy line is mechanically fixed through the stainless steel bolts and then is connected with the aluminum alloy adapting piece through the two M8 stainless steel bolts, the limitation of traditional line installation and adjustment is overcome, the accuracy and convenience of line installation space adjustment and the smoothness of the appearance effect are achieved, and the decoration line connecting system is suitable for being used for decoration lines. And the economical efficiency of the system is improved.

The application discloses a chemical mechanical polishing liquid and a polishing method for soft magnetic alloy. The polishing liquid is composed of the following raw material components in percentage by weight: 1.3wt%-1.8wt% of a chelating agent, 10wt%-13wt% of abrasive, 7wt%-9wt% of a pH buffer, 3wt%-3.5wt% of a corrosion inhibitor, 11wt%-13wt% of an oxidizing agent and the balance of deionized water. The abrasive is acidic silica sol, the oxidizing agent is hydrogen peroxide, the corrosion inhibitor is at least one of glycine, polyaspartic acid, glutamic acid and chitosan, the pH of the polishing liquid is 3-5, and the pH buffer is a citric acid-sodium citrate buffer. The polishing method comprises the following steps: grinding the soft magnetic alloy; performing chemical mechanical polishing rough polishing on the ground soft magnetic alloy by using a rough polishing slurry; performing chemical mechanical polishing fine polishing on the rough polished soft magnetic alloy by using the polishing liquid, so that the soft magnetic alloy with a smooth and flat surface is obtained. The polishing liquid is green, environment-friendly and pollution-free, and the surface of the soft magnetic alloy after polishing is smooth and flat.

The invention provides an air pipe and curtain wall connecting and plugging structure, and relates to the technical field of curtain wall air pipe plugging, the air pipe and curtain wall connecting and plugging structure comprises a curtain wall structure, the curtain wall structure comprises a structural plate, a wall body structure and a plurality of supporting structures, and the multiple supporting structures surround to form a curtain wall air opening penetrating front and back; the curtain wall structure comprises an air pipe and an air pipe connecting box, one end of the air pipe is communicated with the air pipe connecting box, and the end, away from the air pipe, of the air pipe connecting box is communicated with a curtain wall air opening, so that the two ends of the air pipe are communicated with the front end and the rear end of the curtain wall structure. The air pipe connecting box and the curtain wall air opening are connected in an embedded mode, and the rainproof shutters are arranged in a flush mode, so that flatness and attractiveness of the outer vertical face of a building are achieved, the high requirement of a modern building for the impression effect is met, multiple layers of reinforcing and sealing measures such as the sealing plate, the self-tapping screws, the sealant and the fireproof sealant are adopted, and the sealing effect is good. Not only is the supporting strength of the joint enhanced, but also water leakage at the joint is effectively prevented.