87 results about "Bonding problems" patented technology

The preparation method for a solvent-type iron ore composite aggregate comprises: ensuring the proper CaO and 2-4% MgO with weight o.5-2.0 in the first process; then coming the secondary time, wrapping one block layer evenly of CaCo3 powder, dolomite powder, hematite dried powder or acidic iron concentrate ore; then, baking as the acidic aggregate baking temperature and means to ensure the ore not bond. This invention overcomes bonding problem with low cost and little pollution, and improves blast furnace yield even meets the pH balance or desulfurization request.

The invention relates to a silanization treatment method before coating of a steel piece, in particular to a pretreatment method which is cheap, simple in operation, environmentally-friendly and pollution-free and effectively improves the bonding strength of the steel piece and a subsequent organic coating. The method solves the bonding problem of the steel piece and the coating in the prior art. The method comprises the following steps of: performing pretreatment such as surface grinding, polishing, degreasing and the like on the steel piece; and then performing silanization treatment on the degreased workpiece, wherein a silane film obtained on the surface of the workpiece has functional group components such as epoxy group, amino group and the like matched with the coating. By the method, chemical bonding of the subsequent coating and the steel piece is realized by silanization treatment, the bonding force of the coating is improved, no slag is produced in the treatment process, treatment time is short, and the method is simple and convenient to control; and the treatment step is few, surface conditioning and passivation processes can be saved, and bath solution is long in service life and simple in maintenance.

The invention discloses a composite type pavement structure and a pavement method, and relates to a road engineering structure and a construction method thereof. In the invention, the thermal expansion coefficient, the cement concrete and the fiber-reinforced composite material substrate which performance is near to the steel plate are adopted to reinforce for the bottom surface of the asphalt layer; thus improving the performance of anti-fatigue and anti-reflecting crack of the asphalt surface course, effectively preventing the lower bearing layer from being eroded due to infiltration of the rain water from the asphalt surface course, avoiding bonding problem between the asphalt surface course and the cement concrete or the steel plate, increasing stiffness of the steel bridge surface, and particularly reinforcing the steel bridge surface the steel plate of which has insufficient thickness, so as to reduce the thickness of the asphalt surface course, avoid the damages, such as cracking and falling of the asphalt pavement layer caused by the insufficient thickness of the steel bridge surface and the like.

The invention discloses fluorine-containing nanoparticles with high dispersibility and bonding property and a superamphiphobic surface prepared from the nanoparticles. The fluorine-containing nanoparticles with high dispersibility and bonding property are prepared by the steps of grafting a fluorine-containing polymer with an upper terminal group to be a compound D on the surfaces of the nanoparticles, and reacting an epoxy resin polymer with a terminal group to be a compound A with the fluorine-containing polymer through a heat-breaking Diels-Alder reaction. The superamphiphobic surface disclosed by the invention is prepared by the steps of dispersing the fluorine-containing nanoparticles with high dispersibility and bonding property in a low-boiling-point fluorine-free solvent, uniformly mixing with an epoxy resin curing agent, carrying out spray coating on the surface of a substrate material, and carrying out vacuum drying. According to the fluorine-containing nanoparticles disclosed by the invention, the epoxy resin polymer with high dispersibility is introduced, as the epoxy functional group contained in the dispersing polymer can take place a curing reaction with the epoxy group by using the epoxy resin curing agent in the solvent to fix the fluorine-containing nanoparticles on the surfaces of most substrates, the bonding problem of the fluorine-containing nanoparticles on the substrate surface is solved.

The invention discloses an oxygen supply sizing agent groove system and a ceramic surface exposure 3D continuous printing method. The oxygen supply sizing agent groove system comprises an oxygen supply device, a base plate, a connecting pipe, an air-permeable thin film and a sizing agent groove which is of a cylindrical structure; an annular protrusion is horizontally arranged on the inner wall of the sizing agent groove, the upper surface of an annular groove is covered with the air-permeable thin film, the annular groove is formed in the lower surface of the annular protrusion, the base plate is fixed to the bottom of the sizing agent groove, an annular seal structure is defined by the annular groove and the base plate, and a seal chamber is defined by the base plate, the annular protrusion and the air-permeable thin film; multiple through holes are evenly formed in the side wall of the annular protrusion, the annular seal structure is communicated with the seal chamber through the through holes, one end of the connecting pipe is connected with the oxygen supply device, and the other end of the connecting pipe passes through the wall surface of the sizing agent groove and the side face of the annular groove and is inserted into the annual seal structure. By means of the oxygen supply sizing agent groove system, the bonding problem of ceramic biscuits and base plates can be effectively solved, and thereby the continuous ceramic printing is achieved.

This invention discloses a method of selective plastic insert molding on metal component and its product. A metal joint component is bonded with a metal component. After which, the joint component is submerged in plastic so that the molded plastic can be secured on the metal component firmly. Hence, a desired plastic structure can be formed on the metal component. This invention can shorten the manufacturing process and reduce the cost. In addition, it solves the traditional bonding problem between the plastic and the metal component as well as the problem concerning processing time and high cost.

The invention relates to a preparation method and application of an epoxy-based POSS (polyhedral oligomeric silsesquioxane)/ammonium polyphosphate composite flame retardant; after being emulsified, epoxy-based POSS is mixed with ammonium polyphosphate to obtain a composite flame-retardant finishing agent, cotton fabric is subjected to roll-baking flame-retardant finishing with the composite flame-retardant finishing agent, flame retardancy of the cotton fabric is greatly improved, and the cotton fabric is imparted certain water repellency and wrinkle resistance. Compared with the prior art, the preparation method and application have the advantages that epoxy groups capable of reacting with cotton fabric may be crosslinked with the cotton fabric, the bonding problem of the POSS flame retardant and the cotton fabric is solved, the flame-retardant finishing provides higher binding firmness than coating finishing and the flame retardant is more convenient to apply than coatings.

The invention provides a high sealing flexible composite film material for cold punching molding. The composite film material comprises: a thermoplastic resin film inner layer, an aluminum foil metal core layer, and a heat resistant film outer layer. Specifically, the aluminum foil metal core layer is positioned between the thermoplastic resin film inner layer and the heat resistant film outer layer. The thermoplastic resin film inner layer is a multi-layer coextrusion layer containing at least two resin layers. The multi-layer coextrusion layer at least includes a surface heat seal layer and an inner composite layer, and the inner composite layer contacts the aluminum foil metal core layer. The surface heat seal layer contains a non-migrating inorganic additive with lubrication. The upper and lower surfaces of the aluminum foil metal core layer both undergo surface pretreatment. By adding the non-migrating inorganic additive with lubrication to the surface heat seal layer, the bonding problem caused by clinging of a composite material surface and a die can be prevented, and at the same time, air can permeate into the space between the composite material and the die along the gaps between tiny protuberances, so that the whole composite material is easy to undergo cold punching molding and die release. The invention also provides a preparation method of the flexible composite film material.

Provided are a sintered brick layered composite brick unloading method and a device thereof. The device comprises a hanging frame, an upper clamping hand and a lower clamping hand, wherein the upper clamping hand and the lower clamping hand are arranged on the hanging frame through a linear moving pair, the lower clamping hand is arranged on the outer side of the upper clamping hand, the upper clamping hand and the lower clamping hand are respectively provided with a set of driving mechanism, and the driving mechanisms drive the upper clamping hand and the lower clamping hand to be unfolded and folded. The lower clamping hand comprises two sets of lower clamping arm components, each lower clamping arm component comprises a lower clamping arm, a lower clamping sheet and a guide rod which is connected with the lower clamping arm and the lower clamping sheet, each lower clamping arm and each guide rod or each guide rod and each lower clamping sheet can move freely in an up-down relative mode, and the lower edge of each lower clamping sheet is lower than the lower edge of the upper clamping hand. According to the sintered brick layered composite brick unloading method and the device thereof, a layered composite is adopted, after seam closing is conducted on bricks, the bricks are clamped and stacked, the labor of manual seam closing is replaced, moreover, when the upper clamping hand clamps the bricks on the upper layer, the lower clamping hand can fix the bricks on the adjacent lower layer, the bricks on the upper layer are prevented from being driven to move or rise, the bonding problem of adjacent layers of bricks is solved, mechanical brick loading is achieved, the production efficiency is greatly improved, and the labor intensity of workers is lowered.

The invention discloses an electrotome surface laser grooving and polishing integral machining method. The method comprises the following steps: (1) a metal high-frequency electrotome sample is ultrasonically cleaned by alcohol, and is dried; (2) a picosecond fiber laser with a pulse width of 600 ps is used for setting a laser scanning area of 4 mm*15 mm to machine a microgroove in the surface of the electrotome; (3) the machined electrotome is ultrasonically cleaned; (4) a nanosecond pulse laser with a pulse width of 220 ns is used for setting a laser scanning area of 6 mm*20 mm to polish the microgroove area on the surface of the electrotome; and (5) the machined electrotome is ultrasonically cleaned. The method can improve the electrotome bonding problem in operations, and polishes the surface to facilitate relief of the corrosion failure of the electrotome and prolonging of the service life of the electrotome. The method uses the advantages of a laser micromachining technology for efficiently and precisely prepare a microstructure on the surface of the electrotome by using a laser direct writing system; and the machining area and the machining range can be adjusted according to actual demands.

Belonging to the technical field of metallurgy, the invention relates to a method for preventing directly reduced metallic pellets from bonding. The method comprises the steps of: (1) mixing anthracite carbon powder, lime powder, clay and bentonite uniformly so as to prepare peritoneal powder; (2) making a material to be reduced into mineral powder pellets; (3) placing the peritoneal powder into the pelletizing disc of a pelletizer, then putting the mineral powder pellets to be reduced on the peritoneal powder in the pelletizing disc, and initiating the pelletizer so as to prepare composite pellets; (4) subjecting the composite pellets and a pulverized coal reducing agent to a reduction reaction at a temperature of 1180-1220DEG C for 3-4h, thus obtaining metallic iron pellets. The method of the invention solves the bonding problem of directly reduced metallic pellets, and is especially suitable for producing high density metallic pellets, and also especially suitable for production of metallic pellets with high grade iron ore powder.

The invention discloses a device and a method for heating an adhesive film used for bonding chips. The adhesive film used for bonding semiconductor chips sucked by a chip picking and placing head on the moving path of the chip picking and placing head is subjected to non-contact heating in a fixed point mode or a synchronous moving mode through a non-contact heating unit, so that the time required for heating and softening the adhesive film and the time required for bonding the chips can be shortened, the efficiency for bonding the chips are improved and the yield of an encapsulated product within unit time is increased; the adhesive film can be prevented from being heated and softened prematurely, so that the adhesive film is prevented from sticking an adhesive film used for bonding wafers or sticking adjacent chips and adhesive films at the sucking positions of the chips unexpectedly; therefore, unexpected bonding problems are effectively solved and the reliability of production line operation is improved.

A method for producing high permeability mangan zinc ferrite particularly relates to a method for improving electromagnetic performance and mechanical strength of products by using slaked magnetic powder for replacing the original alumina powder or zirconium oxide powder in a superposition sintering production process of high permeability mangan zinc (Mn-Zn) ferrite products. The method for producing high permeability mangan zinc ferrite includes the following steps: (1) leading high permeability Mn-Zn ferrite grain powder materials and deduster return fine powder during spray granulation production to be conducted with first flashback in a kiln with flashback temperature above 1300 DEG C, and obtaining slaked Mn-Zn ferrite magnetic powder, and (2) scattering the slaked Mn-Zn ferrite magnetic powder among blank products evenly. The slaked Mn-Zn ferrite magnetic powder and the blank products belong to the same species of materials and do not react with each other, and therefore the bonding problem is solved and products with high performance are obtained.

The invention provides a 3D printer head and a 3D printer. The 3D printer head comprises a printer head main body and a machine frame, wherein the printer head main body comprises a feeding end and adischarging end; a feeding cavity is formed between the feeding end and the discharging end, and two end parts of the feeding cavity are correspondingly in communication with the feeding end and the discharging end; a rotating shaft is arranged in the feeding cavity, the machine frame is connected with the top of the rotating shaft through a connecting block, and a material extruding mechanism isconnected with the bottom of the rotating shaft; a heating and melting mechanism is annularly arranged on the outer wall of the feeding cavity, a crushing mechanism is arranged on the inner wall of the printer head body, and the heating and melting mechanism is connected with the bottom of the crushing mechanism; and a pre-heating mechanism is arranged on the side portion of the discharging end, and the pre-heating mechanism is connected with the bottom of the heating and melting mechanism. The 3D printer is not limited to a feeding form, the bonding problem among printing layers are effectively improved, and bad bonding phenomena such as cracking, faults, warping and the like among the printing layers are solved.

The invention relates to a regenerative drying barrel, comprising a barrel body provided with a feed port and a discharge port; the inner wall of the barrel body is provided with a current guide plate, an annular chain device, a chain type material raising device and a scraper blade in sequence from the feed port to the discharge port. The regenerative drying barrel is provided with the annular chain device and the chain type material raising device; when in use, the chains of the annular chain device and the chain type material raising device shake freely along with the rotation of the barrel body; and the shaking of the chain effectively avoids the bonding problem of asphalt milling material. Moreover, by using the chain type material raising device, the material lifting ability is alsoimproved, and a good material curtain is formed in the barrel body so that the material is completely contacted with the thermal air current, thereby improving the drying efficiency, decreasing the equipment energy consumption, and meeting the requirement of energy saving emission reduction.

The invention relates to a fluoroplastic-rubber bonding method. The method comprises the following steps: (1) preparing a treatment liquid from a catalyst, a treatment agent and a solvent; (2) puttingsurface cleaned fluoroplastic into the treatment liquid, carrying out treatment at 70-140 DEG C for 1-30 minutes, taking out, cleaning, and airing; and (3) compounding the treated fluoroplastic withrubber, so as to realize bonding in a vulcanization process of the rubber. Compared with the prior art, the bonding method has the advantages that the bonding problem between the fluoroplastic and therubber is solved, the method is simple and wide in applicability, the performance of the rubber is not influenced, and meanwhile, the bonding effect between the fluoroplastic and the rubber is good,and the bonding strength is high.

The invention discloses a high temperature resistant antitack agent and a processing method before metal tape annealing. The high temperature resistant antitack agent is prepared by uniformly mixing the following components: by weight, 1-50% of a substance A and 50-99% of a substance B, wherein the substance A is at least one substance selected from the group consisting of aluminium hydroxide, alumina, calcium hydrate, calcium carbonate, calcium oxide, magnesium hydroxide, copper oxide, zinc hydroxide and zinc oxide; and the substance B is mineral oil or kerosene. The invention also discloses a processing method before annealing of a metal tape by the use of the above high temperature resistant antitack agent, comprising the following steps: uncoiling the metal tape and rolling, spraying the high temperature resistant antitack agent on the surface of a copper belt, crimping and annealing. The copper belt annealing antitack agent provided by the invention has an advantage of reasonable ratio, and can be used to solve the annealing bonding problem of a copper belt bell-type furnace. By the utilization of the copper belt annealing antitack agent provided by the invention, production processes are reduced.

The invention provides a COB display screen packaging method based on copper wire bonding. The COB display screen packaging method comprises the following steps of S1, carrying out die bonding; S2, baking and curing the die bonding glue; S3, welding copper wires, and forming a COB display module based on copper wire bonding; S4, carrying out a lightening test, if the product is a good product or adie bonding problem exists, carrying out the next step, if a wire bonding problem exists, removing damaged wires or pseudo soldering wires, and returning to the step S3 again; S5, carrying out packaging for the first time, adopting discrete glue for packaging, and manufacturing an inner protective colloid on each pixel point, wherein the inner protective colloids are not connected with one another and n a discrete state; S6, removing the inner protective colloid at a failure position; S7, cleaning the failed chip and the copper wires; S8, repairing the chip, baking and curing the die bondingglue, and repairing and welding the copper wires; and S9, carrying out the lightening test, if the product is a defective product, returning to the step S7, and if the product is a good product, carrying out secondary packaging. The beneficial effects are that the copper wire welding technology is applied to production of the COB display screen, and the cost is reduced.

The invention provides tire tread carrying auxiliary equipment. The tire tread carrying auxiliary equipment comprises a louvered vehicle for placing treads, a driving device for shifting out the treads output by a tread production line and arranged at an output end of the tread production line, and an automatic carrying device for carrying the treads on the driving device onto the louvered vehicle and provided with a tread gripper in the length directions of the treads. The tire tread carrying auxiliary equipment firstly uses the driving device for shifting out the treads output by the tread production line, and uses the tread gripper of the automatic carrying device for carrying the treads on the driving device onto the louvered vehicle to realize automatic carrying of the treads, so that the labor intensity of workers is reduced, and the labor cost is reduced; and meanwhile, the treads are carried and placed through the tread gripper, so that the tread placing and bonding problems caused in manual carrying and placing processes are prevented, and the tread production quality is improved.

The invention provides a super-strength waterproof LED light-emitting module and a processing method, and belongs to the field of lamp processing. The super-strength waterproof LED light-emitting module comprises a shell and a light source module arranged in the shell; the light source module comprises a PCB and a lamp bead arranged on the PCB; the LED light-emitting module further comprises a wire connected with the PCB; wire leading-out passages which are in interference fit with the wire are arranged in the two ends of the shell respectively; threads are arranged on the matching surfaces ofthe wire leading-out passages and the wire; and the wire sheath and the threads of the wire leading-out passages are welded. The light-emitting module has the beneficial effects that the bonding problem of the wire outer sheath wire and the outer shell structural member is effectively improved, and the waterproof grade is effectively increased.