42results about How to "Reduce surface residue" patented technology

The invention discloses a silicon wafer chemical and mechanical polishing composition with high stability, belonging to the technical field of polishing compositions for roughlly polishing a semiconductor silicon substrate material. The polishing composition comprises the following components in percentage by weight: 0.5-50 percent of silicon dioxide abrasive particles, 0.01-10 percent of silicon-containing stabilizer, 0.01-20 percent of organic alkali corrosive, 0.01 -10 percent of organic acid chelating agent, 0.01-5.0 percent of other functional auxiliaries and the balance of deionized water. The polishing solution has a stabilization period of over 2 years, can perform repeated polishing or cyclic polishing, and has stable pH value and removal speed, wherein the number of cyclic polishing times can be up to 10. Meanwhile, the polishing composition has high silicon wafer removal rate up to over 1.0 mum/min, and the cyclic polishing removal rate in multiple times can be stable. The polishing solution is convenient to prepare and easy to use, has low cost, and is suitable for the rough polishing of silicon wafers of various types and sizes in the semiconductor industry.

The invention relates to a system for performing a leveling production by means of water mist leveling. A water mist leveling system in a cold-rolling wet leveling production, which is characterized by being composed of a water mist leveling-spraying device and a water mist leveling and suction dust removal system, wherein the water mist leveling-spraying device comprises a water mist leveling-spraying beam, a telescoping mechanism and a leveling mist spraying device; the leveling mist spraying device is fixed on the water mist leveling-spraying beam; the water mist leveling-spraying beam is connected with a connection cross beam via the telescoping mechanism, and the both ends of the cross beam are fixed on the frame of a wet leveling mill respectively; the water mist leveling and suction dust removal system comprises an anti-wrapping guide plate and an inlet side air suction tube; the lower port of the anti-wrapping guide plate is a first air suction opening; the inlet side air suction tube is disposed at the inlet side of the wet leveling mill, and the lower port of the inlet side air suction tube is a second air suction opening. The system can increase the quality of strip steel surface and decrease the production energy consumption.

The invention belongs to the technical field of aluminum alloy processing, and discloses a production method for a 1100-H14 state aluminum alloy strip for processing a high-end cosmetic bottle cap. The production method comprises the following steps of smelting, adopting of a semi-continuous-method casting ingot, homogenizing heat treatment, head cutting, tail cutting and face milling, hot rolling, primary cold rolling, primary intermediate annealing, secondary cold rolling, secondary intermediate annealing, third-time cold rolling until the finished product thickness is 0.7 mm or less, cleaning and tension correction. By means of the production method, the hot rolling and cold rolling processes are optimized, the rolling texture and the annealing texture after a heat treatment system andfinal cold rolling deformation are balanced, the rolled finished product thickness is less than 1 mm, meanwhile, the earing ratio after material punching is reduced, the high surface characteristics of the material after anodic oxidation and coloring are ensured, the color is uniform after oxidation and coloring, and the appearance is high in metal texture, and the using requirements of high-end cosmetic cover material substrates are met.

The invention discloses a medicament foil rolling additive composition. The composition consists of the following components by weight: (A) 0.04-2.0% of low-temperature antioxidant, (B) 80-95% of fatty acid methyl ester, (C) 0.06-1.0% of phosphide anti-wear agent, (D) 1-15% of polyhydric alcohol and (E) 0.04-2.0% of high-temperature antioxidant, wherein the component (C) phosphide anti-wear agent is one or more of triaryl phosphate, tricresyl phosphate and phosphate amine salt; the component (D) polyhydric alcohol is one or more of trimethylolpropane, pentaerythritol and diethylene glycol. By compounding the carbon chain fatty acid methyl ester, the phosphide anti-wear agent and the polyhydric alcohol, the chemical adsorption capability and the flow cleaning performance are enhanced, the surface residue of a medicament foil product is greatly reduced on the premise of ensuring the lubricating capability, and the dyne value and peeling strength of a medicament foil are effectively improved.

The invention relates to a production method of a low-consumption corrosion-resistant cold-rolled product. The method specifically includes the following steps: uncoiling via an uncoiler; breaking and stripping oxides on the surface of strip steel via a leveler; further breaking and stripping the oxides on the surface of the strip steel via a multi-roll straightener; removing the shed and loose oxides of the surface of the strip steel via a scrubbing device; subjecting the treated strip steel to acid pickling and rinsing; removing surface residues of the strip steel mechanically; then subjecting the strip steel to cold rolling; recoiling via a recoiler. Through the method, the surface oxides of the strip steel have more cracks and are large in clearance, and efficiency of acid pickling is improved; part of the oxides is removed while scale breaking, reacting dose of acid pickling is decreased, and acid consumption is lowered; the added value of yield strength of the strip steel after scale breaking is lowered, and convenience is brought to subsequent cold rolling; the strip steel is subjected to leveling prior to cold rolling, so that profile precision of the finished product is improved; chloride ion residues on the surface of the product are decreased, and corrosion resistance of the product is enhanced.

The invention relates to a low acid consumption anti-corrosion hot-replacing-cold product production method. The low acid consumption anti-corrosion hot-replacing-cold product production method comprises the following steps: uncoiling by adopting an uncoiler; breaking and stripping oxide on the surface of strip steel by adopting a temper mill; further breaking and stripping the oxide on the surface of the strip steel by adopting a multi-roll straighter; eliminating the oxide which falls off and is loose on the surface of the strip steel by adopting a brushing device; carrying out acid pickling and rinsing on the treated strip steel; then eliminating residue on the surface of the strip steel by adopting a mechanical way; carrying out surface roughness homogenization finishing on the strip steel; recoiling by adopting a recoiler. By virtue of the technical scheme, the low acid consumption anti-corrosion hot-replacing-cold product production method has the advantages that firstly more cracks and large gaps are formed in the oxide on the surface of the strip steel, so that acid pickling efficiency is high; secondly, eliminating part of oxide while breaking scale, so that acid picking reacting dose is reduced, and acid consumption is reduced; thirdly, added value of yield strength of the strip steel after processing is low; fourthly, a Luders strip is avoided from being formed on the surface of a common hot rolling product; fifthly, chlorine ion residue on the surface of a product is reduced, and corrosion resistance of the product is improved.

The invention discloses a three-dimensional breathable sheet and an absorption product. The absorption product comprises a surface layer and an absorption layer, wherein the surface layer is made of the three-dimensional breathable sheet. The three-dimensional breathable sheet comprises a surface sheet body and a bottom sheet body, wherein the surface sheet body is distributed in the middle of bottom sheet body, and the width of the surface sheet body is smaller than that of the bottom sheet body. The three-dimensional breathable sheet is provided with through holes penetrating the surface sheet body and the bottom sheet body and three-dimensional hollow protrusion areas formed by the surface sheet body and the bottom sheet body. The three-dimensional breathable sheet and the absorption product have the advantages that the surface sheet body is located in the middle of the absorption product, two sides, without the protrusion areas, of the bottom sheet body are adhered to the absorption layer of the absorption product, the liquid permeability and breathability of the surface layer are unaffected while the bonding strength between the surface layer and the absorption layer is increased favorably, the surface sheet body parts on two sides of the surface layer are omitted, the breathability of the absorption production is increased, and the production cost of the absorption product is lowered.

The invention relates to a fresh-keeping and rapid reddening method for green ripe tomatoes. Ethephon and low-density polyethylene are utilized to prepare a temperature-sensitive ethylene slow-releasepackaging material; ethylene is not released in a low-temperature storage stage; ethylene is slowly released in a high-temperature colour changing stage; meanwhile, melatonin in microcapsules can increase synthesis of endogenous ethylene of the tomatoes; therefore, the reddening speed of the tomatoes is increased; meanwhile, exogenous ethylene can be reasonably released through the slow-release material; the reddening uniformity and consistency of the tomatoes are improved; the tomatoes are not directly sprayed or soaked by ethylene; surface residues are reduced; in a colour changing period,semiconductor light source LED red and blue combined light is used for evenly irradiating the tomatoes; red light can promote synthesis of lycopene; blue light can promote the content of VC, total phenols, soluble solids and other nutrient substances and aroma components in the tomatoes; the red light and the blue light can cooperate with ethylene to promote colour changing of the tomatoes; and the eating quality and the nutritional value of the tomatoes after colour changing also can be improved.

The invention belongs to the technical field of grinding machining oil and relates to gear precision grinding oil and a preparation method thereof. The gear precision grinding machining oil comprises the following components of: secondary hydrogenation paraffin-based mineral oil, pentaerythritol oleate, high-base-number calcium sulfonate, sulfurized fatty acid ester, high-molecular polyisobutene and an antioxidant. The preparation method of the gear precision grinding machining oil comprises the following steps of: putting secondary hydrogenation paraffin-based mineral oil and an antioxidant into a container, heating the materials to 40-50 DEG C, and stirring the materials until the materials is transparent; stopping heating, adding sulfurized fatty acid ester and high-molecular polyisobutene into the container, and performing stirring until the mixture is transparent; adding pentaerythritol oleate and high-base-number calcium sulfonate into the container, and performing stirring until the mixture is transparent; and filtering the liquid in the container, and taking filtrate to obtain the gear precision grinding machining oil. The gear precision grinding machining oil is small in harm to the environment and human bodies, good in lubricating performance, high in rust resistance, corrosion resistance and the like, and capable of reducing the machining precision of workpieces.

The invention discloses an installer-remover for orthodontics. The installer-remover comprises a base, wherein the base is arranged on the ground; vertical columns are symmetrically and fixedly mounted in the front and back of the top surface of the base; and lifting sliding blocks are mounted on the vertical columns in the front and back in a sliding manner. When a lifting motor is powered on, afirst threaded shaft is driven by the lifting motor to rotate, the first threaded shaft is rotated to drive the lifting sliding blocks to move up and down, and then the lifting sliding blocks can be adjusted in up and down directions; a rotating sliding block is capable of rotating for 90 degrees around the lifting sliding blocks, and then switching of mounting, dismounting and cutting can be implemented; a tooth socket mounted on the surface of a tooth is firstly cut, the tooth socket is not damaged, residues on the surface of the tooth can be reduced, and accurate positioning can be implemented through a monitor; and due to adoption of a protection shell, lips can be prevented from being cut when the tooth socket is cut, security of the mouth of a user can be protected, and the application range is wide.