11results about How to "Extend curing time" patented technology

The invention provides integrated circuit production and processing equipment, and relates to the technical field of integrated circuit processing, the integrated circuit production and processing equipment comprises a base, the base is provided with a positioning mechanism convenient for fixing an integrated circuit board, the base is provided with a gluing mechanism convenient for gluing and packaging, and the base is provided with a collecting mechanism convenient for recycling glue; the positioning mechanism comprises a vertical rod, the gluing mechanism comprises a support, a first T-shaped sliding block, a glue storage barrel and a valve plate, and the collecting mechanism comprises a constant temperature box, a collecting box, a second motor, an arc-shaped sliding rod and an arc-shaped scraping plate. According to the device, a gluing mode of erecting the integrated circuit board from top to bottom is set, glue naturally falls under the action of gravity, the glue amount can be more accurately controlled, the glue amount of each point is more uniform and consistent, and compared with a mode of plane gluing and waiting for natural leveling of the glue, the glue amount is more uniform and uniform by erecting the circuit board for gluing; the glue can quickly reach a designated position under the action of gravity and form a uniform glue layer, and extra leveling time is not needed.

The invention discloses a phosphate tailing modified epoxy mortar surface protection material and a preparation method thereof, and relates to the technical field of constructional engineering materials.The phosphate tailing modified epoxy mortar surface protection material is prepared from a slurry component A and a solid component B, the slurry component A comprises the following components in parts by weight: 100 parts of epoxy resin, 30-40 parts of bisphenol A diglycidyl ether, 5-6 parts of a modifier, 20-60 parts of phosphate tailing powder and 10-25 parts of active carbon nanospheres; the solid component B is prepared from 10 to 15 parts of polyether amine, 10 to 15 parts of 2, 4, 6-tri (dimethylaminomethyl) phenol, 260 to 280 parts of natural sand, 60 to 80 parts of cement and 2 to 3 parts of modified silicon defoaming agent. The phosphate tailing modified epoxy mortar surface protection material has the advantages of excellent abrasion resistance, impact resistance, high medium resistance and the like, meanwhile, the price of epoxy mortar is reduced, a large amount of solid waste is consumed, and a new technical reference is provided for comprehensive utilization of the solid waste.

Provided is a cationic electrodeposition coating material which does not require high-temperature sintering and drying in which CO2 is not required to be discharged in an electrodeposition coating step, and which hardly generates volatile components when a coating film is dried, and which has extremely excellent anti-rust properties. The cationic electrodeposition coating composition contains at least two different emulsions in a mixed state, and is characterized in that: one of these emulsions is an emulsion (A) of an amine-modified epoxy resin containing a primary amino group or a secondary amino group; and the other is an emulsion (B) of an epoxy compound that does not contain a primary amino group and a secondary amino group and contains two or more epoxy groups in one molecule. Also provided are a method for producing the coating composition and a coating method using the coating composition.

The utility model relates to the technical field of a high-corrosion-resistance double-layer epoxy steel bar welded mesh for a sea-crossing bridge, and discloses a high-corrosion-resistance double-layer epoxy steel bar welded mesh for a sea-crossing bridge, which comprises a steel bar reinforced cross. One reinforcing steel bar can be placed between every two limiting columns arranged on the periphery of the convenient-to-install welding frame assembly, manual welding can be conducted after the reinforcing steel bars are placed in place according to the distance adjusted by the convenient-to-install welding frame assembly, the efficiency of installing a welded net through the installation frame is higher, and the distance size is uniform; in addition, the limiting carrying assemblies arranged on the two sides can be arranged on the two sides in a sleeving mode for limiting after net welding is completed, and during carrying, a crane or a rope can be used for sleeving the lifting lugs on the periphery for carrying or binding a plurality of the limiting carrying assemblies; and finally, the external anti-friction assembly can be sleeved with an anti-friction block if the new welded wire mesh needs to be temporarily stored for a period of time after being produced, so that the junction of the edge is prevented from being rubbed during carrying.

The invention discloses an adhesive for stone plate composite and its preparation method and application. The adhesive comprises component A and component B. Component A comprises raw materials: 40% to 52% epoxy resin, 11% to 16% polyether polyol 400, 6% to 10% diluent, 29% to 39% barium sulfate, and 1% to 2% white carbon black; component B comprises raw materials: 30% to 40% polyether amine D230, 10% to 16% modified amine curing agent, 4% to 6% auxiliary agent, 40% to 55% barium sulfate, and 1% to 2% white carbon black. The adhesive of the invention has the advantages of high bonding strength, no stratification, easy brushing, convenient use, moderate curing time, etc. It is a new epoxy resin adhesive with excellent performance, which can be widely used for effective bonding between stones and between stones and other materials, and can effectively overcome the adverse effects of the stone itself and environmental factors on curing, and has high use value and good application prospects.

The invention provides a preparation method and application of a catalyst for efficiently blocking 107 glue, and belongs to the technical field of organic silicon materials, and the technical scheme is as follows: (1) adding phosphoric acid into alcohol ether organic matters, heating and stirring; (2) continuously dropwise adding an amino silane coupling agent; and (3) after the sufficient reaction, performing vacuum low-temperature removal to obtain the high-efficiency end-capped 107 product catalyst. The catalyst and the raw materials of the efficient terminated 107 adhesive are easy to obtain, the reaction condition is mild, the process is simple, the terminating efficiency is high, and the correspondingly prepared dealcoholized silicone adhesive has the advantages of rapid curing and excellent anti-aging performance.

The application provides a semiconductor laser and a packaging method thereof. The packaging method of the semiconductor laser comprises the following steps: forming a solder structure on one side of a heat sink along a first direction, wherein the solder structure comprises a first solder layer, a porous barrier layer and a second solder layer which are sequentially stacked away from the heat sink along the first direction, the melting point of the first solder layer is greater than that of the second solder layer; the eutectic temperature of the material of the second solder layer and the material of the porous barrier layer is greater than the eutectic temperature of the material of the second solder layer and the first solder layer; arranging a substrate-free semiconductor laser chip on the side of the solder structure away from the heat sink, and performing soldering, wherein the soldering temperature is greater than the melting point of the second solder layer and less than the melting point of the first solder layer.

The invention provides a plate edge banding machine for wooden furniture production, which belongs to the technical field of plate edge banding equipment and comprises a machine table, a conveying belt, an edge bonding assembly, a fine trimming assembly and an edge pressing roller. The edge pressing roller comprises a metal roller and connecting pipes fixed to the two ends of the metal roller respectively, cover plates are fixed to the two connecting pipes, the outer side of the metal roller is sleeved with a rubber sleeve, the two ends of the rubber sleeve are connected to the two cover plates respectively, and a sealed containing cavity is formed between the metal roller and the rubber sleeve. When the environment temperature is high, the cooling water circulating machine circularly conveys cooling water into the containing cavity, the cooling water circularly flowing in the containing cavity can cool the hot melt adhesive coated on the plate, the curing speed of the hot melt adhesive is increased, and the phenomenon of knife sticking in the follow-up procedures such as fine trimming and polishing is avoided. And by arranging the heating plate, when the environment temperature is low, the plate is heated, the curing time of the hot melt adhesive can be prolonged, and the edge sealing strips are fully bonded.

The invention provides a self-cleaning coating with high mechanical property and high adhesive force and a preparation method of the self-cleaning coating. The preparation method comprises the following steps: firstly, synthesizing polydimethylsiloxane-based polyurea (PDMS-PUa) with high light transmission through a solution mixing method; then, preparing CQDs by using an alkali-assisted ultrasonic method, and effectively loading and uniformly dispersing the CQDs in the PDMS-PUa under a continuous ultrasonic condition, so as to finally prepare the PDMS-PUa / CQDs material. According to the present invention, the strong hydrogen-bond interaction is formed between the polar group of the CQDs and the amino group of PDMS-PUa, such that the stability of the whole network structure is enhanced through the interaction, such that the mechanical property is improved, the adhesion property of the material is significantly improved, the adhesion of PDMS-PUa / CQDs can be improved to 3.1 MPa, and the tensile strength of 8.6 MPa and the elongation of 718.65% are provided. The introduction of CQDs also improves the surface tension characteristic of PDMS, promotes the uniform wetting of the coating material, effectively reduces the generation of bubbles and the occurrence of small hole phenomena, and also has better self-cleaning performance.

The present invention provides a preparation method and application of a black fiber winding tape roll, belonging to the technical field of composite material preparation. The preparation method of the black fiber winding tape roll of the present invention comprises the following steps: S1 deep surface cleaning; S2 fiber surface optimization treatment; S3 preparation of coupling agent solution; S4 coupling agent mediated surface modification; S5 nanoparticle grafting; S6 black fiber ribbon forming; S7 resin liquid preparation; S8 coating and rolling; by winding the prepared black fiber winding tape on the circumferential outer wall of the inner lining layer of the composite pipe as a reinforcement layer, the necessary mechanical support is provided for the composite pipe, ensuring the reliability and durability of the composite pipe.

The invention discloses a preparation method and a preparation process of BMC (bulk molding compound) plastic, and relates to the technical field of polymer composites.The BMC plastic is prepared from, by weight, 60-90 parts of resin, 1-6 parts of pigment paste, 10-40 parts of polyurethane prepolymer, 8-18 parts of low shrinkage agent, 0.8-1.4 parts of physical thickening agent and 40-65 parts of glass fiber. The BMC plastic is prepared from, by weight, 3-7 parts of zinc stearate (Zn-th), 0.4-1 part of calcium hydroxide, 0.3-1 part of curing agent and 100-140 parts of kneading agent, hollow ceramic microbeads and IPDI are fused into polyurethane prepolymer, isocyanate group (-NCO) is introduced to react with double bonds in unsaturated polyester, the density of the double bonds in the unsaturated polyester is reduced, the toughness of the BMC plastic is improved, the density of the BMC plastic is reduced through the hollow ceramic microbeads, and the toughness of the BMC plastic is improved. Meanwhile, the insulating property of the BMC plastic is improved, tert-butyl ester is introduced as a curing agent, the problems that the curing time is prolonged and crosslinking points are reduced due to reduction of the density of double bonds are solved, and the material is more wear-resistant and corrosion-resistant.