66results about How to "Adequate bond strength" patented technology

The invention relates to a welding fixture which comprises an upper pressure plate and a lower pressure plate, wherein the upper pressure plate and the lower pressure plate comprise central positioning holes which are arranged coaxially, the lower pressure plate is provided with a tooth block positioning hole, a tooth block mounting groove is arranged on the lower surface of the lower pressure plate and the welding fixture is characterized in that a tooth block positioning screw rod and a tooth block pressure spring are mounted between the upper pressure plate and the lower pressure plate. The welding fixture is simple in structure and can always keep the fastening connection between a tooth block and the welding surface of a basal body by high-temperature welding and avoid the phenomena of looseness and poor welding.

The invention provides laser cladding alloy powder enhanced with oxide particles and a preparation method thereof. The laser cladding alloy powder enhanced with the oxide particles is characterized in that the laser cladding alloy powder enhanced with the oxide particles consists of a matrix alloy powder, the oxide particles and a binder, wherein the proportion is 50-98% of the matrix alloy powder, 1-45% of WC or TiC or a mixture powder of WC and TiC and 1-45% of a combined mixture powder of more than two or one of Al2O3, Cr3C2 and ZrO2. The preparation technological steps of the laser cladding alloy powder enhanced with the oxide particles are preparing the matrix alloy powder, adding the oxide particles, adding the binder, stirring and ball-milling, combining the powder, drying, crushing and sieving. The laser cladding alloy powder enhanced with the oxide particles provided by the invention not only has higher hardness and flexibility, but also has excellent abrasion resistance and corrosion resistance, thereby being quite applicable for the laser cladding of parts under the working conditions of high impact and high abrasion resistance; and moreover, the segregation generated due to great disparity between the proportions of all components can be effectively prevented during the storage, transportation and use processes.

The invention relates to micro-nano oxide particle reinforced high abrasion resistance cobalt-based alloy powder and a preparation method thereof. The micro-nano oxide particle reinforced high abrasion resistance cobalt-based alloy powder is combined powder and is characterized by comprising 50%-98% of matrix alloy powder, 1%-45% of micro-nano oxide particles and 1%-5% of a binding agent, wherein the micro-nano oxide particles are micro-nano Al2O3 or micro-nano mixed powder of one or more of micro-nano Cr3C2 and micro-nano ZrO2. The preparation method comprises the following processing steps: preparing the matrix alloy powder, adding the micro-nano oxide particles, adding the binding agent, stirring, ball-milling, combining the powder, drying, smashing and screening. The micro-nano oxide particle reinforced high abrasion resistance cobalt-based alloy powder has the advantages of high hardness and toughness, excellent abrasion resistance and corrosion resistance and capability of effectively preventing segregation due to wide proportion difference of the components in the storing, transporting and using processes and is particularly suitable for laser-clad high impact resistance and high abrasion resistance parts.

The invention provides micro-nanometer oxide particle reinforced high-abrasion-resistance nickel base alloy powder and a preparation method of the micro-nanometer oxide particle reinforced high-abrasion-resistance nickel base alloy powder. The micro-nanometer oxide particle reinforced high-abrasion-resistance nickel base alloy powder is characterized in that the nickel base alloy powder is composed of matrix alloy powder, micro-nanometer oxide hard particles and a binding agent and comprises 50%-98% of nickel base alloy powder, 1%-45% of micro-nanometer Al2O3 or one of micro-nanometer Cr3C2 and micro-nanometer ZrO2 or combined micro-nanometer mixture powder composed of the micro-nanometer Cr3C2 and the micro-nanometer ZrO2 and 1%-5% of binding agent, and the nickel base alloy powder is combined powder. The preparation technology of the micro-nanometer oxide particle reinforced high-abrasion-resistance nickel base alloy powder comprises the steps of preparation of the matrix alloy powder, addition of the micro-nanometer oxide particles, addition of the binding agent, mixing and ball milling, powder combination, drying, breaking and screening. The micro-nanometer oxide particle reinforced nickel base alloy is high in rigidity, good in abrasion resistance and corrosion resistance, particularly suitable for laser cladding of an alloy workpiece with high surface rigidity and high abrasion-resistance, and capable of effectively avoiding segregation caused by a large component ratio difference in the process of storage, transportation and use.

The invention relates to a railway steel bridge surface protective system, which comprises an epoxy zinc-enriched erosion resistant coating, a polyurea elastomer waterproof layer, a connecting layer and a concrete protective layer, wherein, epoxy zinc-enriched materials comprise a composition A and a composition B; the composition A comprises epoxy resin, organic bentonite, zinc powder, additives, inhibitive pigment A, inhibitive pigment B and solvent; the composition B is 115 curing agent, 650 curing agent and solvent; a polyurea elastomer comprises a material A and a material B, wherein, the material A is semi-prepolymer and thinner, and the material B is amine-terminated polyether, amine chain extender, color paste and thinner. The invention also relates to a construction technique for the railway steel bridge surface protective system. By adoption of the construction technique, the antirust property is superior; waterproof coating has superior physicochemical mechanical property; the waterproof layer has no seam; no dead angle exists during the construction process; the construction technique is simple and convenient, and the construction efficiency is high; the anticorrosive and waterproof problems of a steel bridge surface are solved; the durability of a bridge is improved; and the maintenance period and the service life of the steel bridge surface are prolonged.

The invention discloses a single-component silane modified polyether sealant used in automobile glass rapid assembling. The single-component silane modified polyether sealant used in automobile glassrapid assembling comprises, by weight, silane modified polyether resin of 30 to 60 parts; an environmentally friendly plasticizer of 8 to 30 parts; a filler of 10 to 15 parts; a reinforcing material of 10 to 30 parts; a thixotropic agent of 0.1 to 1; a UV absorber of 0.1 to 1 part; a light stabilizer of 0.1 to 1 part; an antioxidant of 0.2 to 2 parts; a water removal agent of 0.2 to 2 parts; a crosslinking agent of 1 to 10 parts; a coupling agent of 0.1 to 5 parts; and a catalyst of 0.1 to 2 parts. The invention also discloses a preparation method thereof. The sufficient bonding strength of the single-component silane modified polyether sealant is ensured, at the same time, the initial bonding strength of the single-component silane modified polyether sealant is ensured, high bonding speedis achieved, the single-component silane modified polyether sealant is safe, and is friendly to the environment, the bonding effect is excellent, and the single-component silane modified polyether sealant is suitable to be used for rapid assembling of windshield, skylight, and side window glass of vehicles such as passenger cars, delivery vehicles, fire fighting trucks.

The invention provides silicide particle reinforced laser-clad high abrasion resistance cobalt-base alloy powder and a preparation method thereof. The powder is characterized by comprising matrix alloy powder, silicide particles and binders; and combined powder is prepared from 50-98% of matrix alloy powder, 1-45% of one of or combined mixture powder of more than two of SiC or Si3N4, MoSi2 and CoSi2 and 1-5% of binders. The preparation method comprises the steps of matrix alloy powder preparation, silicide particle addition, binder addition, stirring and ball milling, combined powder preparation, drying, grinding and screening. The powder has higher hardness and toughness and excellent abrasion resistance and corrosion resistance, is especially suitable for laser cladding of high impact and high abrasion resistance parts, and can effectively prevent segregation caused by great difference of specific weights of the components in the storage, transport and use processes.

A method of producing an optical module in which with respect to a housing having an optical part received therein, an optical semiconductor device of a package structure is center-aligned to be positioned on an optical axis of the optical part and is attached to the housing. The method comprises the steps of: applying an ultraviolet-or-heat-curable resin onto a joint surface between the housing and the optical semiconductor device and curing the ultraviolet-or-heat-curable resin by external irradiation with ultraviolet rays in the condition that the optical axes of the lens and the laser diode are center-aligned and joined with each other to thereby temporarily fix the optical semiconductor device to the housing; and complementarily curing non-irradiated portions of the ultraviolet-or-heat-curable resin by heating. Preferably, a heat-curable resin is applied onto the outer side of the ultraviolet-or-heat-curable resin to reinforce adhesion between the optical semiconductor device and the housing.

The invention discloses a composite paperboard and a making method of the composite paperboard. The composite paperboard comprises a paperboard layer, a pearl wool layer and an aluminum foil layer, the aluminum foil layer is bonded and fixed on the front side of the pearl wool layer, the paperboard layer is bonded and fixed on the back side of the pearl wool layer, the making method comprises thefollowing steps: (a) placing the paperboard in position; (b) cutting; (c) blocking pearl wool; (d) applying a glue; (e) thermally pressing in vacuum; and (f) drying. The composite paperboard has the advantages of oxidation resistance, antibacterial action, moisture resistance and strong impact resistance, the storage times of melons and fruits are prolonged when the composite paperboard is used tomake a packaging box for the melons and fruits, the fresh preservation property is strong, the melons and fruits are prevented from being deformed by the external extrusion, the transportation safetyof the melons and fruits is guaranteed, the making method is easy to control, less waste is produced, the time is short, the cost is low, the labor intensity of a worker is low, and the product quality is high.

The invention discloses micro-nano silicide particulate reinforced laser cladding alloy powder and a preparing method thereof. The micro-nano silicide particulate reinforced laser cladding alloy powder and the preparing method thereof are characterized in that the micro-nano silicide particulate reinforced laser cladding alloy powder is composed of matrix alloy powder, micro-nano silicide particles and binders. The alloy powder is prepared, by ratio, by 50-98% of matrix alloy powder, 1-45% of micro-nano SiC or micro-nano combined mixture powder of one or more of micro-nano Si3N4, micro-nano MoSi2 and micro-nano CoSi2. The preparing technological steps of the alloy powder include preparing the matrix alloy powder, adding the micro-nano silicide particles, adding the binders, stirring and ball grinding, combining the powder, drying, crushing and screening. The alloy powder for laser cladding is high in hardness and toughness, good in wear resistance and corrosion resistance, particularly suitable for laser cladding of working condition parts with high impact and high wear resistance and capable of effectively avoiding segregation caused by large specific gravity differences among all components in the storing, transporting and using process.

The present invention discloses an efficient and energy-saving type high temperature mortar for cement rotary kilns, wherein the components in the formula comprise, by weight, 40-55 parts of fused mullite, 6-15 parts of corundum fine powder, 2-10 parts of active alumina micro-powder, 2-10 parts of andalusite fine powder, 3-6 parts of kyanite fine powder, 0.5-3 parts of Y2O3, 0.5-2 parts of carboxymethyl cellulose, 0.1-1 part of sodium tripolyphosphate, 0.1-1 part of sodium hexametaphosphate, and 20-35 parts of a silicon-aluminum sol. The present invention further relates to a preparation method of the high temperature mortar. According to the present invention, the efficient compounding of the silicon-aluminum sol is used, and the mullite is easily generated during the high temperature sintering process, such that the structure is compact, the performance is stable, the adhesion strength is continuously improved along with the temperature increase, and the high temperature resistance and the thermal shock resistance are good; and the high adhesion strength is provided at the low temperature, and the adhesion strength is greater than the brick strength, such that the sufficient adhesion strength is provide so as to ensure no generation of bricking lining distortion, brick falling and other phenomena during the drying on the cement rotary kiln.

The invention provides micro-nanometer oxide particle reinforced alloy powder and a preparation method of the micro-nanometer oxide particle reinforced alloy powder. The micro-nanometer oxide particle reinforced alloy powder is characterized by being composed of matrix alloy powder, micro-nanometer oxide particles and a binding agent, wherein the micro-nanometer oxide particle reinforced alloy powder comprises 50%-98% of matrix alloy powder and 1-45% of micro-nanometer Al2O3 or one of micro-nanometer Cr3C2 and micro-nanometer ZrO2 or combined micro-nanometer mixture powder composed of the micro-nanometer Cr3C2 and the micro-nanometer ZrO2. The preparation technology of the micro-nanometer oxide particle reinforced alloy powder comprises the steps of preparation of the matrix alloy powder, addition of the micro-nanometer oxide particles, addition of the binding agent, mixing and ball milling, powder combination, drying, breaking and screening. The micro-nanometer oxide particle reinforced alloy powder is high in rigidity and toughness, good in abrasion resistance and corrosion resistance, particularly suitable for laser cladding of a part with the working conditions of high impact and high abrasion-resistance, and capable of effectively avoiding segregation caused by a large component ratio difference in the process of storage, transportation and use.

The invention discloses an installing and fixing structure for wall decorative plates and a fixing method thereof. The fixing method includes the following steps that double-sided tape with holes formed in the length direction according to needed intervals is pasted to required positions on back sides of the decorative plates in the mode that release paper is laterally outward, the back sides, pasted with the double-sided tape, of the decorative plates and the interiors of the holes of the double-sided tape are both coated with water-based adhesion agents, then the release paper is torn off, the decorative plates are pressed and attached to wall substrates forcefully through the double-sided tape and the water-based adhesion agents, the decorative plates are temporarily fixed to the wall substrates by means of adhesion stress of the double-sided tape, and the decorative plates are formally fixed to the wall after the water-based adhesion agents are hardened. Since the decorative plates are bonded to the wooden wall substrates by means of the water-based adhesion agents, water of the harmless adhesion agents can volatilize through wood materials, and the adhesion agents can be smoothly hardened. Once the water-based adhesion agents are hardened, the water-based adhesion agents can maintain enough adhesion stress for many years.

The invention discloses a modified polypropylene hot melt adhesive. The adhesive is prepared from, by weight, 5-30 parts of functionalized modified polypropylene, 50-90 parts of first random copolymerpolypropylene, 5-20 parts of ethylene-alpha-olefin copolymer and 0.05-0.5 part of an antioxidant. The invention also discloses a preparation method of the above modified polypropylene hot melt adhesive. The modified polypropylene hot melt adhesive has high adhesive strength, can quickly conduct bonding and has strong adhesive force especially under low temperature conditions, and can also help toreduce the production cost and improve the production efficiency.

The invention relates to a high-resistance high-speed auto-inflation food packaging film and a production process thereof. The packaging film is formed by compounding an aluminum-plated PE film and aPET printing film in a dry mode. The aluminum-plated PE film comprises a corona layer, a middle layer and a heat seal layer. The corona layer comprises linear low density polyethylene and polycycloolefin according to the mass ratio of (83-87):(13-17). The middle layer comprises linear low density polyethylene, low density polyethylene and high density polyethylene according to the mass ratio of (48-52):(23-27):(23-27). The heat seal layer comprises low density polyethylene, an olefin plastic body, linear low density polyethylene, silicone and a processing agent according to the mass ratio of (48-52):(23-27):(23-27):(1.3-1.7):(0.1-0.3). The packaging film is suitable for meeting the requirements of a high-speed packaging device and has high resistance, low heat seal temperature, high heat seal strength, high in pressure resistance and low in broken package air leakage rate.

Disclosed is an LED chip bonding adhesive, containing transparent optical silica gel at hardness higher or equal to 35Shore D and viscosity coefficient higher or equal to 1.5, AL2O3 which is 10-20% of the weight of the silica gel, and powder and sedimentation retardant which are 2-10%of the weight of the silica gel. By adding nano inorganic particle powder into SILICONE, thermal conductivity and bonding strength of the silicone resin are increased, making the silicone resin have enough bonding strength and thermal conductivity after being solidified; meanwhile, the optical transmission of the LED chip is greatly improved; the LED chip bonding adhesive can make the LED higher in brightness and lower in cost; therefore, the LED chip bonding adhesive is the best substitute material for bonding the chip of a double-electrode LED.

The invention provides an adhesive composition, which contains a radically polymerizable compound, a radical polymerization initiator and a compound having a nitrogen-silicon bond.

This invention relates to a method for manufacturing a kind of polar plate for alkaline battery, which comprises these processes: prepare the first region by forming reactive layer on porous metal base plate and the second region revealed on the porous metal base plate; blank the polar plate separately with shearing tool on the first region and stamping tool on the second region to obtain polar plate of regular shape.