36results about How to "Plastic enough" patented technology

The present invention provides a method for manufacturing human body absorbable blood vessel support, including the following steps: (1) support forming; (2) cleaning and pre-polishing the support; (3) performing surface alloying treatment to the support; (4) performing fine finish to the support after surface treatment. The invention also provides a human body absorbable blood vessel support, theinvention adopts a surface alloying technique so that the support has a compound diffusion layer with adjustable penetration depth, thereby improving the support intensity and simultaneously quickening the corrosion speed of the support and shortening the support absorption cycle. The yield strength and elongation rate can be modulated in a prodigious scope by controlling the distribution, shapeand depth of the composite diffusion layer, to reach the intensity and absorption cycle required by the support.

The invention relates to a method for producing highly dimensionally stable, deep-drawn half shells (2, 42), which have a bottom region (3), a jacket (5), and optionally a flange (44), wherein a half shell (2, 42) pre-formed from a blank is shaped into a finished half shell, wherein the pre-formed half shell (2, 42) has excess blank material because of the geometric shape of the pre-formed half shell and wherein, because of the excess blank material, the half shell (2, 42) is compressed into the finally formed half shell in a compression tool during the shaping of the pre-formed half-shell into the final form of the half shell by means of at least one pressing process. The problem addressed by the invention is that of specifying a method and a device, by means of which the process reliability during the production of a half shell can be increased. The problem is solved by the previously mentioned method in that the size of the compression gap (38, 76) is reduced during the closing of the compression tool (4, 40) to the actual wall thickness of the jacket (5) of the pre-formed half shell. In addition, the problem is solved by a compression tool according to the invention in that two side walls (18, 20, 56, 58, 80, 82) are provided, which side walls form a die together with the bottom region (14, 54) of the mold (12, 52) of the second tool half (8, 48) and which side walls (18, 20, 56, 58, 80, 82) can be moved perpendicularly or obliquely to the direction of motion of the punch (10, 50).

The invention discloses an alumina base nanometer complex phase ceramics die and a preparation method thereof. The alumina base nanometer complex phase ceramics is adopted to prepare the die, the matrix component of the nanometer complex phase ceramics die is Al2O3, and a second phase is ZrO2(3Y) and MgAl2O4. The preparation method of the nanometer complex phase ceramics die is that an alumina base nanometer complex phase ceramics sintered body of a certain shape is first obtained as the stock for preparing the die; then the hole shape of the die is formed by the method of superplastic pressing; after a slight accurate grinding process, the alumina base nanometer complex phase ceramics die is obtained. The alumina base nanometer complex phase ceramics die has the advantages of good mechanical property, a slight amount of machining and being suitable for mass production.

The invention discloses a seamless steel pipe used for petrochemical engineering. The seamless steel pipe comprises a steel pipe body, an Ni56Cr22Mo13Cu alloy layer, an Nb-TiAl alloy layer, an Mg-Zn-Nd-Cd-Zr alloy layer and a high-corrosion-resistant Fe-(Cr, Ni)-Mo-P-C-B bulk amorphous alloy layer, wherein the outer surface of the steel pipe body is covered with the Ni56Cr22Mo13Cu alloy layer and the Nb-TiAl alloy layer in sequence; the Mg-Zn-Nd-Cd-Zr alloy layer and the high-corrosion-resistant Fe-(Cr, Ni)-Mo-P-C-B bulk amorphous alloy layer are arranged on the inner surface of the steel pipe body in sequence. According to the invention, through the adoption of the scheme, the seamless steel pipe has sufficient plasticity and toughness as well as high corrosion resistance, and can meet the requirements of the conventional petrochemical industry for seamless steel pipes.

The invention discloses a technology for carrying out toughening treatment on stable Beta titanium alloy. According to the technology for carrying out toughening treatment on the stable Beta titaniumalloy, the stable Beta titanium alloy with a gradient organizational structure is prepared by adopting pre-torsional deformation and aging treatment, the strength of the stable Beta titanium alloy isdistributed in a gradient manner from the surface to the center, and then high strength and high toughness are achieved at the same time.

The invention belongs to the field of leather production, and specifically relates to a flame-retardant rubber leather product which is characterized by being prepared from the following raw materials in parts by weight: 20-30 parts of butyl rubber, 15-25 parts of chloroprene rubber, 15-25 parts of natural rubber, 8-10 parts of carbon black, 2-4 parts of zinc oxide, 10-14 parts of a flame retardant, 1-3 parts of stearic acid, 0.5-1.5 parts of a softener, 1-3 parts of sulfur, 1-3 parts of an accelerant, and 0.5-1.5 parts of an anti-aging agent. The flame-retardant rubber leather product can maintain the hardness and also has excellent resistance to crack and resistance to deformation crack growth. The flame-retardant rubber leather product has the hardness range of 20-50, is non flammable, and has excellent flame retardant effect.

The invention provides ultrahigh-yield-ratio steel and a production process thereof. After strip steel is rapidly cooled, a dislocation source is provided through pre-strain treatment, and dislocationpinning strengthening treatment is adopted after pre-strain treatment, wherein the steel subjected to dislocation pinning strengthening is low-alloyed steel, and the carbon content is 0.02%-0.77%. The production process of the ultrahigh-yield-ratio steel comprises the steps of strip steel cold rolling, continuous annealing, rapid cooling, pre-strain treatment and dislocation pinning strengtheningtreatment. According to the scheme, the ultrahigh-yield-ratio steel has enough plasticity and good welding performance. The method can be used for manufacturing parts with high shape stability, highdeformation resistance and high reaming requirements, such as battery protection plates, bumpers, seat guide rails, reinforcers, and measuring tools of automobiles. The production process can also beused for manufacturing spring steel requiring high elastic limit.

Producing a metal band using a casting roller composite plant, comprises casting a metal by a casting device (1, 1'), and hot forming the metal bands by at least one rolling mill (2). The casting roller composite plant is operated so that the metal band extends continuously between the casting device and the rolling mill. The metal band is continuously supplied to the rolling mill. The rolling mill has a desired thickness profile, according to which the rolling mill rolls the metal band. The thickness profile exhibits at least two different target thicknesses for different band sections. Producing a metal band using a casting roller composite plant, comprises casting a metal by a casting device (1, 1') and hot forming the metal bands by at least one rolling mill (2). The casting roller composite plant is operated so that the metal band extends continuously between the casting device and the rolling mill. The metal band is continuously supplied to the rolling mill. The rolling mill has a desired thickness profile, according to which the rolling mill rolls the metal band. The thickness profile exhibits at least two different target thicknesses for different band sections in the longitudinal direction of the metal band. The thickness profile is designed so that the first and/or the second target thickness are adjusted at least twice. Independent claims are also included for: (1) a control and/or regulating device (10) for a casting roller composite plant to produce longitudinally thick profiled metal strip, comprising a machine readable program code, which includes control commands and causes the control and/or regulating device to perform the method mentioned above; and (2) the casting roller composite plant to manufacture metal strip thick profiled in its longitudinal direction, comprising the casting device and the rolling mill, where the control and regulating device is operatively connected with the rolling mill.

The invention provides a high-seedling-rate cotton seedling raising nutrition pot and a seedling raising method thereof. The cotton seedling raising nutrition pot is prepared from, by weight, 13-16 parts of biomass base, 4-7 parts of modified attapulgite, 1-3 parts of mushroom bran, 8-12 parts of river mud, 0.1-0.25 part of plant regulator and 0.5-1.5 parts of compound medicine mixed liquid. Through reasonable raw material selection and matching, nutritional requirements and growth promotion in the seedling growing and budding period are effectively guaranteed, meanwhile, cotton seedling growing tracking treatment is conducted in a targeted mode, the germination rate and the emergence rate of cotton are greatly increased, the seedling rate reaches 99.9%, the growth vigor is excellent, thedisease resistance is good, transplanting is conducted in a field, the overall plant growth vigor is 1-2 cm high, the roots and stems are much and thick and strong. The planting survival rate of the cotton is greatly increased, the disease and pest damage rate is obviously reduced, and the economic benefit is good.

The invention discloses a blowout preventer shell which is characterized by being a rectangular ultrahigh-pressure blowout preventer shell, wherein a plurality of side holes are formed in the shell; the shell is of a double-shell material structure made of 25CrNiMo low-carbon alloy steel and is forged in a quenching and tempering heat treatment way; weight-reduced reinforcing ribs are cast outside the shell; and an anticorrosive paint layer is smeared inside the shell. The blowout preventer shell disclosed by the invention has relatively high yield strength, tensile strength and fatigue strength because of being made of 25CrNiMo low-carbon alloy steel and also has plasticity and toughness; the side holes formed in the shell can be used for throttling and releasing pressure, so that the safety performance is high; and an anticorrosion paint is smeared on the surface of the shell, so that the service life of the blowout preventer is favorably prolonged, and the blowout preventer is high in comprehensive performance and very high in economic benefit.

The invention discloses a process for improving the heating production efficiency of high-carbon chromium bearing steel, and relates to the technical field of steel production, the process comprises the following steps: S1, charging: adopting a hot delivery and hot charging process for 320 * 480 rectangular billets, and increasing the temperature of hot delivery billets; s2, preheating of a non-heat-supply section: adjusting through a burner of an adjacent preheating section, and controlling the temperature to be 750-850 DEG C; s3, material distribution, wherein the distance between steel billets in the furnace is adjusted; and S4, heat supply section: carrying out heat balance calculation on the high-carbon-chromium bearing billet again, adjusting the heat supply energy load of each section, and rolling the high-carbon-chromium bearing billet into round steel with the specification of phi 50-100mm after discharging. On the premise of meeting relevant product standards and technical protocol requirements, the heating production efficiency of the high-carbon-chromium bearing steel with the requirement for the high-temperature diffusion time is improved.

The invention relates to the field of chemical industry, particularly relates to a Cu-Zn-Sn-S photovoltaic material, and a preparation method and a preparation device thereof. The photovoltaic material comprises 18-35 weight parts of Cu, 5-30 weight parts of Zn, 5-30 weight parts of Sn, and 25-45 weight parts of S. The preparation method comprises the following steps: A, respectively weighing Cu, Zn, Sn, and S according to the weight parts; B, mixing the weighed Cu, Zn, Sn and S and encapsulating, and conducting vacuum pumping; C, heating Cu, Zn, Sn and S in a vacuum; and D, cooling to obtain the Cu-Zn-Sn-S photovoltaic material. The preparation device comprises an encapsulation container, a vacuum container and a heating unit, wherein the encapsulation container is arranged in the vacuum container, and the vacuum container is arranged in the heating unit. According to the invention, the Cu-Zn-Sn-S photovoltaic material can be prepared by smelting process.

The invention discloses a secondary cooling control method for a boron-containing steel continuous casting billet. The secondary cooling control method comprises the steps that in a first section of a continuous casting secondary cooling process section, the target temperature of the outer arc surface of the boron-containing steel continuous casting billet is controlled to 1050-1150 DEG C; in the second section of the continuous casting secondary cooling process section, the target temperature of the inner arc surface of the boron-containing steel continuous casting billet is controlled to 950-1049 DEG C; and in the third section of the continuous casting secondary cooling process section, the target temperature of the inner arc surface of the boron-containing steel continuous casting billet is controlled to 800-830 DEG C. Through the combination of the means, the surface quality of the boron-containing steel continuous casting billet can be remarkably improved, the occurrence rate of cracks of the casting billet is decreased, and the secondary cooling control method is suitable for continuous casting process control of boron-containing steel.

A lipid composition comprising, by weight of the lipid composition: from 30 wt% to 70 wt% of a first lipid component; 10 wt% to 40 wt% of a sweet substance; from 5 wt% to 20 wt% of water; 0.1 wt% to 1.2 wt% of an emulsifier; and from 1.5 wt% to 11 wt% of a second lipid component. The emulsifier has an SFA content of less than 90 wt%. The second lipid component has an SFA content of at least 90 wt%, and a fully saturated fatty acid having a carbon chain of more than 16 carbons comprises C22: 0 and comprises at least 33.3 wt% of the SFA content of the second lipid component by weight. The lipid composition has an SFA content of at least 40 wt%, and fully saturated fatty acids having a carbon chain of more than 16 carbons comprise at least 12.5 wt% of the SFA content of the lipid composition by weight. The lipid composition has a C12: 0 content of from 0.35 wt% to 12 wt%. The lipid composition provides a hardness of from 500 g to 2000 g at 5 DEG C to 15 DEG C as measured by texture analysis using a 5 mm cylindrical probe penetrating 75% of the original height of the lipid composition at 2 mm/s. The lipid composition contains less than 2 wt% of TFA.

The invention relates to a universal self-closing wear-resisting erosion-resisting soil sample press station; the resisting soil sample press station comprises a bottom plate, two first side plates, two second side plates and a cuboid top block, wherein two first trapezoid dovetail grooves and another two rectangular grooves are arranged on the bottom plate; the first trapezoid dovetail grooves are crossly symmetrical linear grooves of which openings are narrower than the bottom parts and the dip angle of oblique side is 20 degrees; the bottom parts of the first side plates are trapezoid wedges, and the matching gap between the first trapezoid dovetail groove and the trapezoid groove is lateral-sided 0.05 mm-0.07 mm; the side faces of the first side plates are further provided with two second trapezoid dovetail grooves of which dip angle of the oblique side is 15 degrees; the bottom parts of the second side plates are rectangular wedges adapted to the rectangular grooves, both ends of the side faces are provided with trapezoid wedges, and the matching gap between the second trapezoid dovetail groove and the trapezoid wedges is lateral-sided 0.05 mm-0.07 mm; the whole station is treated by cadmium plating; a neodymium iron boron magnetic block is further arranged on the bottom plate. The universal self-closing wear-resisting erosion-resisting soil sample press station is strong in university, self-closing, self-wear-resisting, and acid and alkali corrosion resisting.