59results about How to "Increase hardness" patented technology

The invention relates to the field of metal cookware manufacturing, in particular to cookware with high wear resistance and aims to overcome the defects in the prior art. The cookware is high in non-stick layer adhesion strength, high in abrasion resistance and high in wear resistance. According to the technical scheme, a manufacturing method of the cookware includes the steps of firstly, forming a cookware body through die-casting; secondly, using a numerically controlled lathe to perform metal processing; thirdly, finishing and polishing; fourthly, removing oil on the surface of the cookware body; fifthly, cleaning the cookware body with purified water, 3% alcohol solution and oil dissolving agent, and drying; sixthly, guaranteeing that the base material of the cookware body is clean before spraying, sand blasting the surface of the cookware body after preheating, and using the high-pressure gas of a sand blasting machine to further roughen the surface of the cookware body; seventhly, spraying the cookware body for the first time, cleaning the cookware body, then loading the cookware body onto a spraying machine, and spraying metalizing materials which include TiO2 and Al2O3 to the cookware body.

The invention discloses a sympodial bamboo integration profile manufacturing method. The method is characterized by including the following steps: S1, soaking bamboo filaments of sympodial bamboo which are subjected to green planing and yellow removing in water for high-temperature stewing at temperature of 100-120 DEG C for at leat four hours, wherein the water contains, by mass, 5-10% of hydrogen peroxide and 0.5-1% of sodium hydroxide; S2, disposing wet bamboo filaments in a carbonization furnace for carbonizing at temperature of 130-15o DEG C and at pressure of 3-4 MPa for 4-6 hours; S3, drying for the first time, dipping in glue, and drying for the second time after glue dipping; S4, performing high-pressure forming at pressure of being not less than 1.2 t/cm2; S5, performing thermosetting for more than 10 hours at temperature of 80-150 DEG C under the condition that the pressure of being not less than 1.2 t/cm2 is maintained. By the sympodial bamboo integration profile manufacturing method, sympodial bamboo integration profiles meeting structural profile requirements can be manufactured.

The invention provides novel non-sintered biological stuffing rapid in biofilm formation and a preparation method thereof, relating to biological stuffing and preparation methods thereof and solving the technical problems that the existing biological stuffing has long biofilm formation time and poor effluent quality in water treatment processes and preparation processes are high in energy consumption and pollute the environment. The biological stuffing is prepared from sepiolite, medical stone, cement, polyvinyl alcohol, sodium alginate, hydrogen peroxide, ferric chloride, manganese sulfate, cobalt chloride and agar. The method comprises the following steps: I. heating and dissolving polyvinyl alcohol and sodium alginate, adding hydrogen peroxide after cooling, and mixing the components uniformly, thus obtaining a liquid mixture; II. mixing the liquid mixture with other solid components, granulating the mixture, putting the granules at normal temperature, drying and sieving the granules, curing the granules at high pressure and low temperature, steam-curing the granules at constant temperature, and cooling the granules at normal temperature, thus obtaining the biological stuffing. Compared with the common ceramsite, the biological stuffing has short biofilm formation time, good effluent quality and coarse surface and is beneficial for microorganism growth. The biological stuffing is applied to the fields of environmental applied materials and sewage treatment.

The invention discloses a wear-resistant corrosion-resistant stainless steel cup material. The material comprises the following chemical components of, by mass, 0.35-0.55% of C, 0.75-1.15% of Si, 0.80-1.20% of Mn, 5.50-8.50% of Cr, 0.55-0.85% of Cu, 0.18-0.38% of Mo, 0.20-0.40% of V, 0.20-0.06% of Co, 0.03-0.05% of Nb, 0.02-0.04% of Ti, 0.01-0.03% of Ce, 0.0010-0.0040% of Yb, 0.0010-0.0035% of B,the balance Fe and inevitable impurities. The stainless steel cup material has relatively high wear resistance and high corrosion resistance, low in cost, good in antibacterial performance, strength,hardness and heat resistance and excellent in comprehensive performance.

The invention discloses a high red hard boron-containing high speed steel and a preparation method thereof, and belongs to the technical field of wear-resistant material. The high red hard boron-containing high speed steel comprises the compositions of, by weight, 1.0-3.0 of B, 0.2-0.8 of C, 5.0-7.0 of Cr, 3.0-6.0 of Mo, 0.5-2.0 of Al, 0.5-1.5 of Si, 0.5-1.5 of V, 0.5-1.5 of Mn, and the balance Fe. The high red hard boron-containing high speed steel has excellent wearresistance, red hardness, and excellent harden ability. High hardness can be obtained by cooling only in the air, thus the highred hard boron-containing high speed steel is very suitable for the preparation of parts for use in high temperature wear conditions such as rolls. In addition, the production cost is low, productionprocess is simple, and promotion and application value is good.

The invention provides a thermal barrier coating preparation technology, and relates to a NiCrAlY coated YSZ thermal barrier coating powdered material preparing method. The method is characterized in that a high pressure water mist method is used for preparing a NiCrAlY alloy coated YSZ thermal barrier coating powdered material, coating powder is arranged on the surface of a high-temperature alloy sample in advanced, the sample is placed in a protection box with argon serving as protective gas, and a ladder bonding layer is prepared through laser wide-band cladding. According to the method, YSZ is coated with laser cladding NiCrAlY, and the ladder bonding layer which can reduce cracks generated by direct cladding of a ceramic layer and a metal base due to different linear expansion coefficients and improve the bonding intensity and thermal shock resistance of the coating.

The invention relates to a dead fish salvaging device and discloses a dead fish salvaging device based on the rotating type and the shaking simulation mode. The dead fish salvaging device comprises asalvaging machine body. The bottom of the salvaging machine body is fixedly connected with a floating bed. By arranging the floating bed, the dead fish salvaging device can float on the water surface,and salvaging operation is facilitated. The top of the salvaging machine body is fixedly connected with a servo motor, the output end of the front face of the servo motor is fixedly connected with arotating shaft A through a flat key, and a micromotion-type salvaging mechanism is arranged between the surface of the rotating shaft A and the left side of the salvaging machine body. The servo motorworks, thus the rotating shaft A works and drives the micromotion-type salvaging mechanism to shake in a left-right reciprocating mode, and a reciprocating-type shaking mechanism drives the bottom ofthe micromotion-type salvaging mechanism to shake in an up-down reciprocating mode through the rotating shaft, so that the salvaging effect is more diversified, and dead fishes near the water surfacecan enter the salvaging device; and the more dead fishes can be stored, and salvaging is facilitated.

There are provided lamella structured thin films having ultralow dielectric constants and high hardness, and the method for manufacturing the same. In the lamella structured thin film, silica layers and air layers are alternately and repeatedly stacked on the surface of a wafer in the vertical direction. The method of manufacturing the lamella structured thin film includes, agitating silica sol solution containing surfactant and silica precursor, spin-coating the solution on silicon wafer, aging the wafer, and annealing the wafer to remove the surfactant and organic materials from the wafer. The lamella structured thin film has excellent mechanical strength and high chemical stability, and in particular, has significantly low dielectric constant of no more than 2.5 and high hardness. In the method of manufacturing the lamella structured thin film, semiconductor processes can be made simple and economical since only pure silica is used and no additionally surface treatment is performed.

The invention relates to a collapsing intensifier for sodium silicate-bonded sand used for casting. Raw materials of the collapsing intensifier for the sodium silicate-bonded sand comprise the components including ferric oxide magnetic powder, dickite powder, xanthan gum, ceramic micro powder, fluosilicate, bentonite and a surfactant. According to the collapsing intensifier, a mixture of the ferric oxide magnetic powder, the xanthan gum and the dickite powder serves as the collapsing intensifier, since the collapsing intensifier is adopted, produced combustible gas is little, most importantly,the situation that after casting-purpose sodium silicate which mainly contains sodium silicate, potassium metasilicate and lithium silicate is poured, sand removing is difficult can be reduced greatly, the collapsibility of the sand is remarkably improved, and the strength of the molding sand is obviously improved. On the premise that the gas evolution amount of a sand core is not increased, thecollapsibility of an inorganic bonding agent mainly containing the sodium silicate is greatly improved, the retained strength of the agent is greatly reduced, and the strength of the sodium silicate-bonded sand is improved.

The invention discloses carbon-free high-speed steel and a preparation method thereof. According to the carbon-free high-speed steel provided by the invention, iron powder is introduced to replace molybdenum powder and cobalt powder, and a small amount of LaB6 is introduced to improve the tempering resistance and red hardness of the material; and through joint addition of La and B, strengthening is caused, austenite transformation is delayed, structure coarsening and desolvation of alloy elements during tempering are inhibited, so that the red hardness and the hot hardness of the Fe-Co-Mo material are improved. Meanwhile, a preparation process is simple, the cost of the raw materials is reduced, the excellent cutter material performance is shown, and a prepared cutter can keep high hardness and is not sticky under the long-time cutting action, and important application value in the industry is achieved.

A coir fiber spring cushion adhesive, which consists of 350-400 parts of natural rubber, 15-20 parts of 20% concentration soapy water, 2-4 parts of rubber accelerator powder, 3-5 parts of rubber anti-aging agent powder, rubber It is prepared by mixing 1-2 parts of vulcanization accelerator powder, 10-13 parts of zinc oxide powder, 1-3 parts of ZDC powder, 60-80 parts of calcium carbonate powder, and 1-2 parts of potassium hydroxide solid; among them, rubber accelerator Powder, rubber anti-aging agent powder, rubber vulcanization accelerator powder and calcium carbonate powder need to be mixed with water in a ratio of 1:4, and zinc oxide powder, ZDC powder, calcium carbonate powder need to be mixed with water in a ratio of 1:2. The adhesive has good viscosity, elasticity and long-term anti-aging effect, which can keep the spring cushion from collapsing for 10-15 years.