150results about How to "Improve surface brightness" patented technology

The invention relates to a film for suction plastic packaging of medical equipment and a method for preparing the same. The film adopts a five-layer structure; the first layer is a heat seal layer A, of which the component is co-mixing resin of linear low-density polyethylene and metallocene catalytic polyethylene taking octene as a comonomer, wherein the content of the metallocene catalytic polyethylene in the co-mixing resin is 20 to 40 weight percent; the second layer is an inner layer B, of which the component is linear low-density polyethylene containing a hexene comonomer; the third layer is a core layer, of which the component is linear low-density polyethylene containing a butene comonomer; the fourth layer is a bonding layer D, of which the component is maleic anhydride grafted polyethylene; and the fifth layer is a weathering resistant layer E, of which the component is nylon 6 or 66. The preparation method comprises the following steps that: the bottom blowing water cooling type co-extrusion process or flow casting method is adopted, and the plastics is subjected to fusion and die inflation or flow casting, and quick cooling at water temperature of between 15 and 18 DEG C. The film and the preparation method have the advantages that: the method is simple; the products have merits of various resins; the film can be thermally sealed with the dialyzing paper without glum spreading; and moreover, the method and the film also have the advantages of low film thickness, good comprehensive property and reutilization.

A high-lustre polypropylene material and its production are disclosed. The material consists of polypropylene resin 100 proportion, filler nanometer calcium carbonate 25-35 proportion, dispersant 0.5-1.5 proportion, cross-linking agent diisopropylzene 0.1-0.5 proportion, beta-crystal nucleation agent 0.1-0.5 proportion, and antioxidant 0.1-0.5 proportion. It costs low, has better toughness and surface brightness on surface.

The present invention relates to one kind of transparent polycarbonate alloy material and its preparation process. The transparent polycarbonate alloy material consists of polycarbonate 10-89 wt%, linear saturated polyester 10-89 wt%, alloy compatilizer 0.5-0.8 wt%, catalyst 0.01-0.05 wt%, and antioxidant 0.1-0.5 wt%. It is prepared through mixing the materials and pelletizing in a double screw extruder. The polycarbonate alloy material has high transparency, excellent hydrolysis resistance and wide use, and may be used in making cellphone cover, household appliance and automobile parts, etc.

In order to overcome the problem that an aluminum alloy shell obtained by a method in the prior art is low in surface brightness, the invention provides a preparation method for the aluminum alloy shell. The preparation method comprises the following steps: S1, carrying out sand blasting treatment, wherein pressure intensity for sand blasting treatment is 0.18-0.25MPa, and the grain size of sand aggregates is 80-205 meshes; S2, carrying out chemical polishing treatment: at a temperature of 90-100 DEG C, adopting a polishing solution to polish for 15-20 seconds; S3, carrying out anodic oxidation treatment: carrying out the anodic oxidation treatment in an anodic oxidation electrolyte comprising 180-200g/L sulfuric acid at a temperature of 18-20 DEG C under a voltage of 13-16V, thereby obtaining an anode oxidation film with a thickness of 10-20 mu m; and S4: carrying out polishing treatment on the surface of the anodic oxidation film. The invention further discloses the aluminum alloy shell prepared by the method. The aluminum alloy shell prepared by the method is high in surface brightness, has various decorative effects, and is good in appearance quality.

The invention relates to a post processing polishing process for a hot galvanizing product. The method comprises the steps of placing a large number of steel balls into a rotatable containing cavity capable of vibrating up and down, then placing the hot galvanizing product into the steel ball pile, starting equipment to rotate and vibrate the containing cavity up and down to promote the hot galvanizing product to be collided and rubbed with the steel balls, so the face of the hot galvanizing product is polished. The post processing polishing process for the hot galvanizing product can be implemented by adopting normal equipment, the operation is simple and convenient, the cost is very low, and the geometric dimension of a workpiece is not damaged in the treatment process. After the polishing, defects such bulges and uneven parts remaining at the face of the workpiece in a hot galvanized process can be removed, the face brightness of the workpiece is improved, the appearance quality of the workpiece is improved and the use demands of high-grade equipment are met.

The invention relates to the field of high-molecular materials. The usage amount of silicone powder as an additive is generally lower than 5 parts by weight; in order to solve the problem that the silicone powder is unequally dispersed after being directly added and blended with a granular material base body, the invention provides a foaming silicone master batch. The foaming silicone master batch is prepared by blending the following components in parts by weight: 100 parts of thermoplastic high-molecular resin, 70-150 parts of the silicone powder, 0.5-1 part of foaming agents and 2-8 parts of an antioxidant. The foaming silicone master batch has the advantages of light weight and low density, and is easy to blend and disperse together with the granular thermoplastic high-molecular resin.

The invention discloses a halogen-free low-smoke flame-retardant cable material, comprising, by weight, 75-90 parts of polyvinyl chloride, 0.5-4 parts of a smoke inhibitor, 5-10 parts of expansible graphite, 3-8 parts of a plasticizer, 16-20 parts of a filling agent, and 1-3 parts of an antioxidant. By modifying the various additives, especially using the expansible graphite, low-smoke property and flame retardance of the material herein are greatly improved, and mechanical strength of the material is partly improved.

The invention provides a preparation method modified calcium carbonate. The preparation method includes: mixing and crushing calcite and talcum, performing dry grinding to obtain raw slurry with solid content being 70-75%, performing constant-temperature stirring and grinding to obtain processed slurry with average particle size being 0.9-1.1 micrometers, adding naphthalene sulfonate type anti-precipitation agent and anionic surfactant into the processed slurry to perform liquid-phase dispersing, drying, collecting, depolymerizing and dispersing, adding brightener and liquid surface modifier to perform wrapping treatment, and stirring to obtain the modified calcium carbonate. By the preparation method, the modified calcium carbonate which is good in printing performance, good in dispersity, good in surface brightness and applicable to films adhered to car bodies can be prepared.

The invention discloses a low-density anti-impact modified polyvinyl chloride pipe, which is produced from the following components in parts by weight: 100 parts of polyvinyl chloride resin, 0.4 to 4.0 parts of stabilizer, 2 to 8 parts of flexibilizer, 2 to 8 parts of rigid particles, 0.5 to 3.0 parts of processing agent, 1.1 to 2.5 parts of lubricant, 0.05 to 0.5 parts of antioxidant, 0.03 to 3 parts of colorant and 0 to 5 parts of filling agent. A production process of the low-density anti-impact modified polyvinyl chloride pipe is as follows: all the components are uniformly mixed in a high-speed mixer, a pipe is extruded out by a double-main unit single-screw extruder after uniform mixing in the cold mixer, and after vacuum sizing and cooling formation, the pipe is cut according to fixed length and packaged. Because the flexibilizer and rigid particle synergistic toughening method is used by the anti-impact modified polyvinyl chloride pipe disclosed by the invention, the problem that rigidity-toughness balance of the PVC pipes is hard to realize is solved, and thereby the toughness of the pipe is notably increased while the pipe keeps the rigidity of hard PVC pipes.

The present invention discloses a re-foundry technique and method of waste copper used for producing copper alloy cast formed parts by utilizing waste copper. The main method in accordance with the present invention comprises selecting waste and old copper scrap such as red copper and brass and right amount of rare-earth alloy elements; heating them to 1100-1200 DEG C at an intermediate frequency electric stove, adding alloy element and rare earth of 0.03%-0.5% after a thoroughly stirring, performing an affinage and deterioration processing, straring casting after achieving the preceptive casting temperature, and finally, warehousing after a cleaning and check-up. Casting parts produced by adopting said technological process exhibit high surface brightness, compact internal organizing, without gas cavities, inclusion and abscess air holes therein, which all data entirety achieve performance levels of casting parts of the same breed variety, in china and overseas.

The invention provides a surface treatment method of silver evaporating material, comprising: providing silver evaporating material; Performing a centrifugal grinding operation on the silver evaporating material; Performing a cleaning operation on the silver evaporating material after the centrifugal grinding operation; Drying the silver evaporating material after the cleaning operation. A centrifugal grin operation is performed on that sil evaporating material, to remove an oxide layer on the surface of the silver vaporizer, so that that effect of surface polis is achieved, compared to a scheme employing an acid pickling operation to remove an oxide layer, The invention can avoid the problem that the pickling solution consumes the silver evaporating material, thereby improving the surfacebrightness and smoothness of the silver evaporating material, improving the purity of the silver evaporating material, reducing the consumption of the silver evaporating material, and further reducing the preparation cost of the silver evaporating material.

The invention discloses environment-friendly fluorescent anti-counterfeiting aluminum-foil paper and a manufacturing technology thereof. The environment-friendly fluorescent anti-counterfeiting aluminum-foil paper comprises a base paper layer and an aluminum-foil layer, one surface of the aluminum-foil layer is coated with an adhesive, the base paper layer is composited on the surface of the aluminum-foil layer through the adhesive, and the other surface of the aluminum-foil layer is coated with a fluorescent anti-counterfeiting layer formed by compositing of a fluorescent adhesive and a photosensitive adhesive. The environment-friendly fluorescent anti-counterfeiting aluminum-foil paper has the advantages that the fluorescent anti-counterfeiting layer is further composited in an aluminum-foil paper body and base paper layer compositing process, the structural strength of the aluminum-foil layer is improved by the composited fluorescent anti-counterfeiting layer, and surface brightness of the aluminum-foil layer is enhanced; based on an original aluminum-foil paper compositing technology, two laminating machines and a curing device are added, so that the aluminum-foil paper can be composited; compared with other anti-counterfeiting aluminum-foil paper, the fluorescent anti-counterfeiting aluminum-foil paper is simplified in technology, low in cost and capable of reducing energy consumption indirectly to achieve environment friendliness.

The invention provides a deburring method for joint accessories. The joint accessories are made of high-carbon steel materials. The deburring method includes the following steps of (a) pre-treatment of the joint accessories, (b) preparation of deburring liquid, (c) chemical deburring treatment and (d) post-treatment of the joint accessories. The deburring method is easy and convenient to operate, environmentally friendly and efficient, obviously lowers the surface roughness of the accessories, improves the surface brightness of the accessories, and greatly improves the mechanical strength of the accessories.

The invention provides a temperature control system of a multi-point die for a high light injection process without melt traces, which essentially comprises a heating boiler, a cooling pool, a pump, an air compressor, a mixer and a control unit. The heating boiler is connected with a steam pipeline; the cooling pool is connected with an cooling pipeline through the pump; the air compressor is connected with an air compressing pipeline; an outlet of the mixer is connected with the cooling pool; at least two branch pipelines are respectively connected with a set of die are arranged on the steam pipeline; the cooling pipeline has at least three branch pipelines and one of the branch pipeline is connected with an inlet of the mixer and the other branch pipelines are provided with the control valves and respectively connected with one set of die; at least two branch pipelines respectively connected with one set of die are arranged on the air compressing pipeline. By adopting the invention, one set of temperature control system can realize temperature control of a plurality of dies simultaneously; besides, the invention simplifies the structure, reduces the cost and occupied area of the system as well as enlarges operation space of technicians.

The invention provides hot galvanizing furnace hearth composite alloy and an implementation process. The hot galvanizing furnace hearth composite alloy comprises, by weight, 96.9%-99.85% of zinc, 0.08%-1.0% of aluminum, 0-0.14% of nickel, 0-1.0% of manganese, 0-0.12% of silicon, 0-2.0% of magnesium, 0-0.5% of rare earth lanthanum and 0-1.0% of rare earth cerium. The implementation process includes the steps of burdening, smelting, plating part treatment, hot galvanizing and the like. According to the hot galvanizing furnace hearth composite alloy, the materials have excellent corrosion resistance and comprehensive mechanical property, the structure and performance are stable, and the quality can be guaranteed to meet the requirements for current national standard; the preparation method is simple, the cost can be effectively controlled, and the market prospect is good.

The invention discloses an active calcium silicate, and a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing a coupling agent and water to prepare a dispersion solution; (2) adding calcium silicate into the dispersion solution prepared in the step (1), and stirring; carrying out vacuum filtration to obtain modified active calcium silicate; and (3) drying the active calcium silicate prepared in the step (2). The invention also discloses a plastic stuffing which comprises the active calcium silicate, a lubricant, polymers and a compatilizer. The invention also discloses a method for preparing the plastic stuffing. When being used in blow molding, running, injection molding and other plastic products, the active calcium silicate or plastic stuffing has favorable dispersion effect and toughening effect.

The invention relates to a PBT (polybutylene terephthalate) enhanced flame-retardant laser printing material. The PBT enhanced flame-retardant laser printing material comprises the following raw materials: PBT resin, PBT laser powder, a flame retardant, an antioxidant, a flow aid, a demolding agent, 5%-8% of a toughening agent and glass fibers. The PBT enhanced flame-retardant laser printing material is prepared by the steps of feeding dried PBT into a double-screw extruder from the first section of a cylinder body, mixing the flame retardant, the PBT laser powder, the antioxidant, the flow aid, the demolding agent and the toughening agent by virtue of a high-speed mixer, adding the mixture into the double-screw extruder from the fourth section of the cylinder body by virtue of a proportioning feeding machine, simultaneously adding the glass fibers, and after blending materials by virtue of the double-screw extruder, carrying out extruding, cooling, particle dicing and measurement packing. The PBT enhanced flame-retardant laser printing material can resist high temperature and can be used for printing white fonts on a black substrate by virtue of laser, and the fonts are clear.

The invention discloses a glass fiber enhanced polycarbonate (PC) and a preparation method thereof. The glass fiber enhanced polycarbonate comprises the following ingredients according to mass percentage: 50-90% of polycarbonate, 10-30% of glass fiber, 5-15% of flexibilizer, 2-6% of compatilizer, 0.1-1% of anti-oxidant and 0.3-1.5% of TAF bright lubricant. The glass fiber enhanced polycarbonate (PC) has the beneficial effect that compared with prior art, The prepared glass fiber enhanced polycarbonate (PC) has high strength, good appearance, and excellent processing performance and electrical property, the TAF bright lubricant can prevent glass fiber exposition, the surface-brightening degree of the products can be simultaneously enhanced, processing temperature of the products can be produced, and wearing effect of machinery equipment is reduced.