40results about How to "Meet the use standard" patented technology

The invention provides an improved engine oil filter. The improved engine oil filter comprises a shell and a controller. A partition plate is arranged in the shell, and the inside of the shell is divided by the partition plate into a first chamber and a second chamber. Two through holes are symmetrically formed in the partition plate, and filter nets are arranged at the through holes respectively. First detection devices for detecting the thickness of filter residues on the filter nets are arranged on the filter nets respectively and connected with the controller. A base is arranged on one side, close to the first chamber, of the partition plate, and first cleaning devices are arranged at the portions, close to the through holes, of the base respectively. The first chamber is internally provided with a first filter element, and the inside of the first chamber is divided by the first filter element into a first filter cavity and a second filter cavity. The second chamber is internally provided with a second filter element, and the inside of the second chamber is divided by the second filter element into a third filter cavity and a fourth filter cavity. A second detection device for detecting the thickness of filter residues on the second filter element is arranged on the second filter element and connected with the controller. The fourth filter cavity is internally provided with a second cleaning device. By means of the improved engine oil filter, impurities in engine oil can be filtered out, the using standard of the engine oil can be met, and the filter residues on the filter elements can be easily removed.

The present invention relates to a thermochemical dehydration process for ultrahenvy oil. Said invention is characterized by that it adopts thermochemical static settlement dehydration and indirect heat-supplying mode using heat transfer oil as thermal carrier, and adopts nodel tubular heat exchange equipment to implement thermochemical dehydration process of ultraheavy oil. In the course of dehydration LH-2 or RS-2 oil-soluble demulsifier with a certain concentration is added in the ultraheavy oil, and the water content of dehydrated and settled raw oil can be up to 3-5% standard.

The invention discloses a preparation method of an environment-friendly modified starch adhesive for a cigarette, belonging to the technical field of an adhesive. The adhesive uses the starch as the main ingredient, is free of an organic solvent, is properly modified by adding a small amount of modifying agent, overcomes the inherent defects of the pure starch adhesive, such as low solid content, poor fluidity and poor storage stability, so that the product performance is improved greatly, and the product can meet production of a high-speed cigarette making machine, and is suitable for various cigarette adhesive joints, such as a cigarette holder and a connector. The auxiliary material used in the method is free from harmful substances such as methyl aldehyde and phthalic acid esters, under the premise of meeting the requirement on cigarette production, the sanitary and safe condition meets the sanitary standard of adhesive in China cigarette industry, and real environment-friendly property is realized.

The invention discloses a stainless steel seamless tube for a sodium-cooled fast reactor. Microalloying component fine adjustment is carried out based on a 316H stainless steel base material, the stainless steel seamless tube comprises the following components in percentage by mass: 0.04-0.05% of C, less than or equal to 0.6% of Si, 1.00-2.00% of Mn, less than or equal to 0.030% of P, less than or equal to 0.003% of S, 17.0-18.0% of Cr, 11.5-12.5% of Ni, 2.50-2.70% of Mo, less than or equal to 0.10% of Cu, 0.05-0.07% of N, less than or equal to 0.0015% of B, less than or equal to 30 ppm of O, less than or equal to 5.0 ppm of H and the balance of Fe and impurities, and the ferrite content is controlled to be less than or equal to 1%. The stainless steel seamless tube for the sodium-cooled fast reactor is manufactured through a high-purity smelting process, microalloying component fine adjustment, a stainless steel casting process, a hot perforation treatment process and finished product cold machining. By means of the mode, the stainless steel seamless pipe for the sodium-cooled fast reactor and a preparation method can meet the use standard of nuclear safety high-temperature nano pipelines, and the stainless steel seamless pipe has obdurability, corrosion resistance and durability.

The invention discloses a cloth cutting machine for clothes processing. The cloth cutting machine comprises a processing platform, wherein a stainless steel plate is arranged at the top of the processing platform and a cloth cutting frame is arranged at one side of the top of the stainless steel plate; a material guide device is arranged at one side of the cloth cutting frame; a first electric retractable rod penetrates through the top of the cloth cutting frame; a supporting plate is arranged at the bottom end of the first electric retractable rod; a cutter is arranged at the bottom of the supporting plate; a fixing device is arranged at one side of the cutter; a clamping device is arranged at the other side of the cutter; guide rods are arranged at two sides of the supporting plate; thecloth cutting machine relates to the technical field of the clothes processing. The cloth cutting machine for the clothes processing can be used for rapidly detaching the cutter; heating wires are arranged at two sides of a cutter groove so that unnecessary economic wastes are avoided and the manpower and material resources are saved; the height and the width of a friction wheel can be adjusted sothat the cloth cutting machine is suitable for cloth with any specification; a condition that the cloth has folds in a cloth cutting process is prevented; the cloth cutting effect of the cloth cutting machine is ensured and the utilization standards of users can be met.

The invention provides a low-odor, low-emission and flame-retardant composite material and a preparation method thereof, and relates to the technical field of high polymer materials. The low-odor, low-emission and flame-retardant composite material provided by the invention is prepared from the following raw materials: modified polypropylene, an inorganic filler, glass beads, modified sepiolite, amodified tourmaline powder, a lubricant, zinc stearate, a coupling crosslinking agent and an antioxidant. The polypropylene composite disclosed by the invention is a low-emission organic (benzenes and aldehydes and like eight substances are low) material with good flame retardance and low odor; the material provided by the invention can be extensively applied to the automobile industry, especially the exterior and interior decoration materials of the new energy automobile, is free from environment pollution, green and environment-friendly, and capable of guaranteeing the human health of the user.

The embodiment of the invention discloses a stereoscopic model construction method of an anatomical structure and a repairing body of the anatomical structure. The method comprises the steps of fitting the anatomical structure to obtain a corresponding outer grid entity; shrinking the outer grid entity inwards to form an inner grid entity; creating cells on the basis of a cube of a preset size; with the inner grid entity as the basis, generating an inner grid composed of the cells; with the outer grid entity as the basis, generating a corresponding outer grid; connecting the outer grid and theinner grid, and generating a stereoscopic model represent by the grid structure. By means of the method, the stereoscopic three-dimensional model of the grid structure can be formed. The stereoscopicmodel can well fit the focus area or the three-dimensional stereoscopic shape required for reconstruction repairing.

The invention discloses a novel sheet metal cutting machine. The novel sheet metal cutting machine comprises a bearing plate, two supporting legs fixed to the lower end of the bearing plate and two cutting tables installed at the upper end of the bearing plate; third drivers are installed in the two supporting legs and are connected to electrically-controlled lifting rods through speed regulators, the electrically-controlled lifting rods penetrate through the bearing plate to be connected to the cutting tables, the supporting legs are provided with rotary knobs, and the rotary knobs are electrically connected to the speed regulators; the upper ends of the two cutting tables are connected through a fixed frame, two first drivers are installed at the top of the fixed frame, the bottoms of the first drivers are connected to cutting tools through telescopic devices, and the cutting tools face the surfaces of the cutting tables; and sliding rails are arranged on the transverse edges on the surface of each cutting table, and two limiting rods are installed between the sliding rails. The cutting process is simple, manual operation is easy, the cutting efficiency of sheet metal is high, and the metal is prevented from sliding in the cutting process.

The invention relates to the technical field of limos, in particular to a table special for a limo. The table comprises an installation bracket, a supporting piece and a table plate. The table plate is composed of a first fireproof plate layer, a PVC foam plate layer and a second fireproof plate layer from top to bottom. The bottom of the table plate is provided with a second sliding piece. The second sliding piece is movably connected with the upper end of the installation bracket. The lower end of the installation bracket is provided with a first sliding piece. The upper end of the first sliding piece is provided with a clamping hole. The two ends of the supporting piece are connected with the first sliding piece and the second sliding piece correspondingly, and the end where the supporting piece is connected with the first sliding piece is provided with an elastic clamping piece matched with the clamping hole. The table special for the limo is simple in structure, light, convenient, practical and capable of saving preparation materials and reducing the preparation cost and has great significance to promotion of application and development of limos.

The invention discloses a medical miniature brushless motor, which belongs to the technical field of motors and comprises a base fixedly mounted in a motor shell, a track assembly is arranged on the base, a power output assembly is slidably mounted on the track assembly and comprises a winding mounting cylinder, and the winding mounting cylinder is slidably mounted on the track assembly. A rotor and a winding coil are arranged in the winding installation cylinder, air outlet holes are formed in the winding installation cylinder, a damping assembly is further fixedly installed on the base and used for controlling the opening size of the air outlet holes, and then the damping effect is achieved through the counter-acting force of airflow. According to the invention, the brushless motor can automatically realize the functions of heat dissipation and shock absorption in the use process, dust in the motor can be removed under the condition that the motor is not disassembled, the operation is simple, and the service life of the motor is prolonged.

The invention relates to a gearbox applied to a high-speed wheel excavator. The gearbox comprises a box body part, an input part, an output part, a front axle part and a lubricating system and is characterized in that the lubricating system is located in the box body part, the input part is driven by four hydraulic motors, the input part and the output part are directly driven through gears, and the front axle part controls power output and interruption through a shifting fork; the lubricating system is combined by a forced lubricating system and splash lubricating system, the forced lubricating system comprises inner oil channels arranged in the box body and box cover of the box body part, the inner oil channels are connected with an external oil pump through a threaded hole, lubricatingoil is pumped into the inner oil channels, and the inner oil channels are communicated with a front axle support bearing, an input output support bearing, a shifting fork slide sleeve and a gear meshing point; splash lubricating is achieved through gear oil stirring and oil-collecting-groove guiding, and the splash lubricating system is communicated with a bearing through oil holes in a spacing ring to lubricate the bearing. The gearbox is simple in structure, capable of increasing the highest advancing speed of the wheel excavator, capable of increasing the transition efficiency of the wheelexcavator.

The invention provides a producing process of a sucker rod centralizer made of ultrahigh-molecular-weight polyethylene. A filler is prepared from the following components by weight: 1% to 1.5% of graphite, 1.5% to 2% of carbon black, 1% to 1.5% of calcium stearate, 0.4% to 1% of pyrogenic silica, 1% to 2% of titanium dioxide, 0.5% to 1% of a coupling agent vinyl siloxane, and 90% to 95% of ultrahigh-molecular-weight polyethylene, wherein the total percentage by weight of the components is 100%. The producing process comprises the following steps: pouring the filler into the upper part of a lower sucker rod centralizer die, carrying out die assembly, putting assembled dies into a press machine for pressing to obtain a blank, and starting to heat to ensure that the filter is heated and melts into liquid gradually; filling a sucker rod centralizer die cavity with the liquid filler, continuing heating and pressing till a product is shaped, carrying out pressure-maintaining cooling, opening dies, and taking out of a finished product. According to the producing process, the material performance and the processing manner of ultrahigh-molecular-weight polyethylene are improved, so that the improved ultrahigh-molecular-weight polyethylene can be used for producing the sucker rod centralizer, and the sucker rod centralizer made of the improved ultrahigh-molecular-weight polyethylene material has higher chemical corrosion resistance, abrasion resistance and impact resistance, and longer service life.

The invention relates to the technical field of motor homes, in particular to a toilet wallboard special for motor homes. The toilet wallboard special for motor homes comprises a first fireproof board layer, a PVC foam board layer, a second fireproof board layer, an active carbon filled layer and a breathing layer which are arranged in sequence from left to right. The active carbon filled layer contains spherical active carbon, the particle size of spherical active carbon is 10-50 micrometers, and the surface of spherical active carbon is grafted with titanium dioxide. According to the toilet wallboard special for motor homes, by filling the active carbon filled layer with active carbon grafted with titanium dioxide, the wallboard can continuously and effectively remove peculiar smells in a toilet through the breathing layer, use is convenient, and the structure is simple; the PVC foam board and the fireproof boards are adopted as main materials, the mass is small, the strength is high, the fireproof, waterproof and heat-insulating functions are achieved, and the motor home use standard is met; besides, the toilet wallboard special for motor homes is simple in structure, light, practical and capable of saving preparation materials and reducing preparation cost and has great significance in promoting application and development of motor homes.

The invention discloses a strong oxidant cleaning solution for a wafer boat for semiconductor production, the strong oxidant cleaning solution is a mixed solution of hydrofluoric acid and a strong oxidant, and the strong oxidant is at least one of potassium dichromate, potassium permanganate, potassium perchlorate and sodium ferrate; the concentration of hydrofluoric acid is 2-20wt%, and the concentration of the strong oxidant is 1-10wt%. The mixed solution of hydrofluoric acid and the strong oxidant is used for cleaning the semiconductor wafer boat, and nitrogen is used for bubbling, so that pollution can be completely removed, and the cleanliness of the product is ensured. The wafer boat cleaned by the method is low in cost and high in cleaning efficiency; rainbow prints on the surface of the wafer boat and organic pollutants and inorganic particulate matters such as stubborn photoresist can be effectively removed. Meanwhile, the surface of the wafer boat can be ensured to be clean and free of corrosion marks to the greatest extent, and the product is ensured to meet the use standard.