37results about How to "Fully dipped" patented technology

The invention relates to a mica tape manufacturing method with low production cost. With the method, environment pollution is reduced. The method is suitable for energy saving and emission reduction. The method comprises the steps that: a nano-grade material processed through a surface activation treatment is added to mica powder; the nano-grade material and the mica powder are subject to high-speed stirring dispersion, and an obtained uniformly-mixed material is preserved for later use; a first adhesive is coated on a reinforcing material by using a roller; with an electrostatic field, the mica raw material is absorbed onto the reinforcing material; a second adhesive is sprayed onto the mica raw material of the reinforcing material; the one-side reinforced mica tape half-finished product is delivered through a baking oven, such that an organic solvent is removed by baking; the product is cooled, and is rolled and coiled by using a roller, such that a one-side reinforced mica tape finished product is obtained. The invention relates to a novel production technology designed according to natural characteristics of electric charges. Only a small amount of the solvent is required, such that the production cost of the mica tape is reduced, and environment pollution caused by the organic solvent is greatly reduced. Also, production speed can be improved, and baking temperature can be reduced, such that electric energy consumption can be reduced by approximately 1/3.

The invention provides 3D science paper as well as a production method and production equipment thereof. The 3D science paper is prepared by soaking printing decorative paper serving as a raw material into glue with high transparency, wherein the glue comprises the following components in percentage by weight: 20-30% of polyurethane, 30-50% of acrylic resin, 1-3% of a cross-linking agent, 1-3% of a curing agent, 3-5% of a permeating agent, 1% of a flatting agent and the balance of water. The 3D science paper has an extremely good homochromatic effect, does not have chromatic aberration, is high in hardness, scratch-resistant, wear-proof and good in toughness, can be bent for 180 degrees without cracking, and is favorable for packaging. Moreover, the raw materials, aids, resin and the like in the production process of the product are water-soluble, so the 3D science paper is nontoxic and environmentally friendly.

The invention provides a composite fiber reinforced polymer (FRP) rebar preparation device which comprises a yarn feeding device, an impregnation device, a forming device, a heating curing device, a traction device, a cutting device and a length control device. Relative to the prior art, the preparation device has substantive characteristics and progress, particularly, yarn pressing rolling shafts and yarn threading holes are arranged in the yarn feeding device of the composite FRP rebar preparation device, so that fiber bundles are enabled to be in a tension state, and different fiber bundles are prevented from knotting and rubbing; through the adoption of the impregnation device, the fiber bundles are fully and uniformly impregnated, the coating amount is small, the fiber content of a composite FRP rebar is increased, and the standard deviation of the mechanical performance of the composite FRP rebar is reduced; through the adoption of the forming device, the distribution uniformity of the fiber bundles in thermosetting resin is greatly improved; through the adoption of the heating curing device, the curing temperature is enabled to be stable, and the production is facilitated; and through the adoption of a buzzer of the length control device, operators can be reminded to carry out cutting, the FRP rebar is prevented from being over-roasted, and the continuity and safety of production are improved.

The invention relates to a mica tape manufacturing method suitable for energy conservation, emission reduction and reduction of environmental pollution. The mica tape manufacturing method includes adding nanometer materials subjected to surface activation into mica powder; uniformly stirring and dispersing the nanometer materials and the mica powder at high speed for standby application; coating first adhesive on a reinforced material through a drum, and adsorbing mica raw materials onto the reinforced material by means of an electrostatic field; spraying second adhesive onto the mica raw materials on the reinforced material, compositing the second layer of a reinforced material to obtain a semi-finished double-side reinforced mica tape; drying the semi-finished double-side reinforced mica tape to remove organic solvent through a drying oven, cooling and rolling the semi-finished double-side reinforced mica tape to obtain a mica roll, namely a finished double-side reinforced mica tape. The mica tape manufacturing method is a new production process utilizing natural characteristics of charge. Only by little solvent, production cost of the mica tape is reduced, and the environmental pollution of the organic solvent is greatly reduced.

The invention relates to a thermoplastic pultrusion once-forming process and belongs to the field of thermoplastic composite material production and processing. The thermoplastic pultrusion once-forming process sequentially comprises the following steps of yarn distribution, wherein yarn is placed on a yarn rack; yarn arranging, wherein the yarn on the yarn rack is subjected to threading, arranging and carding; glass fiber infiltration, wherein the arranged and carded yarn is injected into a gum dipping area by means of extrusion by screw rod extrusion equipment and high temperature, and resinmelts at high temperature to realize glass fiber infiltration; forming traction, wherein resin obtained after gum dipping passes through a preforming mold and is directly formed after heat preservation and cooling, and then a product is pulled out through traction; and cutting. The thermoplastic pultrusion once-forming is simple and reasonable in process design, stable, reliable and quick in forming, realizes continuous pultrusion once-forming, and meets use requirements.

The invention relates to an even gluing device for a composite material electric pole winding machine. The device is used for performing even gluing on a fiber cloth (9) and comprises a glue dipping tank (8) containing colloid resin, at least two glue dipping rollers arranged inside the glue dipping tank (8), driving rollers arranged above the glue dipping tank (8), and a pneumatic roller. The driving rollers are used for feeding the fiber cloth (9) into the glue dipping tank (8) through the glue dipping rollers, and then the fiber cloth (9) is fed into the pneumatic roller after being fully dipped with glue by means of the colloid resin. The pneumatic roller comprises a controllable roller (6) and a fixed roller (7) which are spaced by a certain clearance up and down. By the adoption of the even gluing device, the fiber cloth can be fully dipped with the glue, the gluing amount of the fiber cloth can be controlled to be within a reasonable range, and a prepared composite material electric pole is made uniform in structure and good in performance; and moreover the using amount of the colloid resin can be reduced, the conditions of fiber fuzzing, cracking and winding procedure interruption are avoided, and production efficiency is improved.

The invention relates to a paint dipping method and system for a winding stator of a motor. The method comprises the processes of pre-drying, cooling, vacuum paint dipping, paint dripping and baking. The winding stator keeps running in a horizontal rotary state at at least the front section of the baking process until an initial solidification state of paint dipping is reached. The system comprises a pre-drying box, a cooling box, a vacuum paint dipping box, a paint dripping box and a baking box. A rotary bearing mechanism is arranged at at least the front section of the baking box and drives the winding stator to run in the horizontal rotary state until the initial solidification state of paint dipping is reached; the winding stator keeps running in the horizontal rotary state and is baked after pre-drying, cooling and vacuum paint dipping operations, so that the phenomenon of winding paint shortage caused by dripping of paint in the winding stator can be avoided; and the winding stator in the horizontal rotary state enables the paint dipping to be complete and uniform, thereby ensuring the paint dipping quality.

The invention relates to a sampling method for mechanics performance testing of preoxidized fibers, which comprises the following steps of: 1) putting the preoxidized fibers to be tested on a releasing roller; 2) performing gum dipping on the preoxidized fibers passing through the releasing roller in a gum dipping tank; 3) allowing the preoxidized fibers subjected to gum dipping to pass through a compression roller; 4) fixing the preoxidized fibers passing through the compression roller and subjected to uniform gum dipping to a sample forming frame, wherein the sample forming frame can rotate at a uniform speed and is used for fixing the preoxidized fibers; and 5) drying the preoxidized fibers fixed to the sample forming frame. The method solves the technical problem that the conventional sampling method for mechanics performance testing of the preoxidized fibers cannot ensure the gum content of the preoxidized fibers to be tested so as to influence the mechanics performance of the fibers, and makes a tested sample dip gum more fully have the gum content more uniform; and gum beads influencing test results cannot be left on the sample.

The invention relates to a tensile property sample preparation device of an ultra-high modulus carbon fiber multifilament and a sample preparation method, and belongs to the technical field of material property testing. The tensile property sample preparation device of the ultra-high modulus carbon fiber multifilament includes a precision control system, an automatic glue dispensing system and anauxiliary positioning system. The sample preparation method comprises the following steps of: placing a pre-wound ultra-high modulus carbon fiber multifilament frame on a sample preparation glue dispensing device, and automatically adding a glue solution through the precision control system; then placing the glue-dipped carbon fiber multifilament in an oven for curing; and pasting a reinforcing sheet for tensile testing. The invention solves the problem of high damage and brittle fracture of fibers encountered during a manual glue-dipping process of ultra-high modulus carbon fibers, and prepares multifilament tensile sample strips with smooth appearance. The tensile property sample preparation device of the ultra-high modulus carbon fiber multifilament and the sample preparation method disclosed by the invention have important popularization and application prospects in the engineering development and production of the ultra-high modulus carbon fibers and composite materials thereof, and high thermal conductivity mesophase pitch-based carbon fibers and composite materials thereof.

The invention belongs to the field of precision casting and discloses an automatic dipping system for silica sol shell molding. The automatic dipping system for silica sol shell molding comprises a horizontal catenary conveying line, hooks, hangers, wax molds and a dipping tank. The dipping tank is disposed below the catenary conveying line. A roller is disposed on the outer wall of each hanger and capable of driving the corresponding wax mold to synchronously rotate. A roller guide board is disposed on one sides of the hangers and between the catenary conveying line and the dipping tank. The roller guide board is an elongated board component parallel with the catenary conveying line and crossing over the dipping tank. Along with the hangers, the wax molds are guided by the roller guide board to cross the side wall of the dipping tank and enter and immerge under the liquid level of the dipping tank. During slurry dipping, the wax molds synchronously rotate with the rollers to allow all parts of each wax mold to be fully dipped. Slurry dipping for silica sol shell molding by the automatic dipping system is high in production efficiency and low in labor intensity of workers, dipping uniformity can be guaranteed, manufacturing cost is low, and use cost is low.