32results about How to "Improve breakthrough" patented technology

The invention mainly discloses a production process of a nuclear bolt. A 42CrMoE steel material is adopted as a raw material, and the nuclear bolt is produced by blank preparation, heat treatment, surface treatment and flaw detection, wherein the raw material of 42CrMoE comprises the following chemical components by mass percent: 0.38 to 0.48 of C, 0.10 to 0.40 of Si, 0.75 to 1.00 of Mn, no more than 0.025 of P, no more than 0.015 of S, 0.80 to 1.15 of Cr, 0.15 to 0.30 of Mo and the balance of Fe. The product obtained by production in the invention meets the requirements of nuclear 1-stage equipment, nuclear 2-stage equipment and nuclear 3-stage equipment, and the strength, the hardness and the impact resistance all reach standards.

The invention provides a method used for producing hydrogen by taking cellulose as a raw material. The method comprises following steps: 1, microwave acid digestion; 2, enzyme hydrolysis; 3, dark fermentation hydrogen production; 4, photo fermentation hydrogen production; and 5, purification. The method is high in hydrogen yield, hydrogen production efficiency, substrate utilization ratio, and energy conversion efficiency.

The invention provides an automatic high speed lancing device by layered conveying, aiming at solving the problem that working performance can not be improved by duplication owning to pause caused bythe fact that the next bag body can be delivered into a carrying mechanism only one bag body is horizontally completely moved away from the carrying mechanism in the existing automatic lancing deviceimproving working performance by distributary operation. The key points of the technical scheme are as follows: the device comprises a frame and lapping bag material longitudinal conveying mechanism,a cutting mechanism, a swing distributor, two or more rear longitudinal conveying mechanisms, two or more horizontal conveying mechanisms and two or more automatic lancing machines arranged on the frame; wherein each rear longitudinal conveying mechanism is arranged in a layering way, and the swing distributor is arranged behind the cutting mechanism and is respectively in fit with each rear longitudinal conveying mechanism by changing conveying angle by repeat swinging. The rear part of the rear longitudinal conveying mechanism can be provided with a gauge.

The invention provides a method for two-step fermentation of a starchy raw material with a mixed strain to produce hydrogen. The method comprises the steps of: (1) liquefaction; (2) saccharification; (3) dark fermentation to produce hydrogen; (4) photo-fermentative hydrogen production; and (5) purification. The method provided by the invention has excellent hydrogen production rate, hydrogen production velocity, substrate utilization rate and energy conversion efficiency.

The invention mainly discloses a production technology of an improved bolt. The production technology comprises the steps that 42CrMoE rolled steel is adopted as a raw material, a blank is prepared, heat treatment is conducted, surface treatment is conducted, and defectoscopy is conducted, wherein the raw material 42CrMoE comprises the chemical components in percentage by mass: 0.38%-0.48% of C, 0.10%-0.40% of Si, 0.75%-1.00% of Mn, smaller than or equal to 0.025% of P, smaller than or equal to 0.015% of S, 0.80%-1.15% of Cr, 0.15%-0.30% of Mo, and the balance of Fe. According to the production technology of the improved bolt, products obtained through the technology meet the requirements of nuclear power first-level equipment, nuclear power second-level equipment and nuclear power third-level equipment, and the strength, the hardness and impact resistance are all up to the standard.

The invention mainly discloses a bolt production process. 42CrMoE steel is used as a raw material, and blank preparation, heat treatment, surface treatment and flaw detection are carried out, whereinthe raw material 42CrMoE comprises chemical compositions including, by mass, 0.38%-0.48% of the C content, 0.10%-0.40% of the Si content, 0.75%-1.00% of the Mn content, not larger than 0.025% of the Pcontent, not larger than 0.015% of the S content, 0.80%-1.15% of the Cr content, 0.15%-0.30% of the Mo content and the balance Fe. A product produced by the process meets the requirements of nuclearpower first, second and third stage equipment, and the strength, hardness and impact resistance are up to the standard.

The invention mainly discloses a production process of a high-performance bolt. 42CrMoE steel is adopted as a raw material, and blank preparation, heat treatment, surface treatment and flaw detectionare carried out, wherein the raw material 42CrMoE comprises the following chemical components in percentage by mass: 0.38-0.48% of C, 0.10-0.40% of Si, 0.75-1.00% of Mn, less than or equal to 0.025% of P, less than or equal to 0.015% of S, 0.80-1.15% of Cr, 0.15-0.30% of Mo and the balance Fe. The product produced by the production process meets the requirements of nuclear power first-level, second-level and third-level equipment, and the strength, hardness and impact resistance all reach the standard.

The invention discloses an intelligent wheel anti-collision system, and belongs to the technical field of automobile safety. In order to timely increase the contacting area and friction force of a tire and a road surface during emergency braking at a critical juncture for improving the braking effect, according to the following adopted technical measures, a microphone, a Doppler detecting device and/or a distance measuring device are mounted on an automobile, the microphone, the Doppler detecting device and/or the distance measuring device are connected with a computer, and the computer is connected with a cover opening device; a pressure reducing valve communicates with an inner cavity of the tire and is mounted on a wheel hub of a wheel, an exhaust port of the pressure reducing valve issealed by an exhaust cover which can be opened, and an cover opening groove or other devices being facilitated for cover opening is machined in the exhaust port; the pressure reducing valve communicates with the inner cavity of the tire and is wrapped by a sealed container and is mounted on the wheel hub of the wheel; and the cover opening device is mounted on the circumference where the exhaust cover passes. According to the anti-collision system of the intelligent wheel, an exhaust device is mounted on the tire, air pressure of the tire can be lowered instantly under controlling of a personor a computer, and the contacting area of the tire and the road surface is increased greatly.

The present invention provides a technological method for windowing the shrapnel and discharging the wasted piece. The wasted shrapnel of internal frame is sucked by shrapnel, doctor blade and air suction gathering system. The shrapnel is installed with a 45 DEG direction in the surface of mold-cut product material. The doctor blade which is inclined is installed in front of the planar surface of mold-cut product material and shrapnel. The tip of doctor blade is positioned adjacently with the planar surface of mold-cut product material. An air suction port of air suction gathering system is positioned above the planar surface of mold-cut product material. The process of planar moving of mold-cut product material comprises the following steps: a first step, springing the side of inner frame of product with the shrapnel which forms 45 DEG to the surface of mold-cut product; a second step, shaving the inner frame wasted piece which has one sprung side off the surface of mold-cut product material; and a third step, sucking the wasted piece which is shaved from the surface of mold-cut product material with the air suction gathering system. The method of the invention increases the efficiency and saves labor cost. The on-line wasted piece discharging can be realized and the subsequent packaging trimming personnel is not required. Real-time on-line wasted piece discharging is realized on the machine and the phenomenon of adhesion does not exist. The finished product rate is up to 95% and is increased for 10% compared with the prior art.

The invention mainly discloses a bolt production technology. 42CrMoE steel is adopted as a raw material and subjected to blank preparing, heat treatment, surface treatment and flaw detection. The rawmaterial 42CrMoE steel comprises the chemical components of, by mass, 0.38-0.48% of C, 0.10-0.40% of Si, 0.75-1.00% of Mn, 0-0.025% of P, 0-0.015% of S, 0.80-1.15% of Cr, 0.15-0.30% of Mo and the balance Fe. A product obtained through the production technology meets the requirements of first-stage equipment, second-stage equipment and third-stage equipment, and the strength, the hardness and the impact force resistance of the product all reach the standard.