43results about How to "Strong filling" patented technology

There is provided a conductive paste obtained by kneading conductive particles into an epoxy resin and having good filling ability into a via hole, which can form a connected portion wherein the connection resistance does not change with time even under high temperature and high humidity conditions. Also, there is provided a method for manufacturing a multilayer printed wiring board using the conductive paste. A conductive paste containing conductive particles and a resin mixture wherein the content of the epoxy resin having a molecular weight of 10,000 or more is from 30 to 90% by weight in the total resin component and whose elastic modulus at 85 DEG C after curing is 2 GPa or less, the content of the conductive particle being from 30 to 75% by volume. Furthermore, a method for manufacturing a multilayer printed wiring board using the conductive paste.

The invention provides a wastewater treatment system, which comprises a reaction tank body, an electrolysis device, an electrolysis air supply system, a catalytic material and a separation net, wherein the reaction tank body comprises a water inlet and a water outlet; the water inlet and the water outlet are formed at upper ends of two opposite side walls of the reaction tank body respectively; the electrolysis device comprises a positive plate, a negative plate and a power supply; the positive plate and the negative plate are arranged in the reaction tank body; the power supply is electrically connected to the positive plate and the negative plate; the electrolysis air supply system comprises an aeration pipe and an air pump; the aeration pipe is arranged at the bottom of the reaction tank body; the catalytic material is filled in the reaction tank body and is transition metal loaded carbon base or silicon dioxide base particles; and the separation net is arranged at the water outlet. The wastewater treatment system has the advantages of high efficiency, cleanness in a treatment process and no or less sludge production.

One embodiment of the invention discloses a thermal control method for aerospace equipment. The thermal control method comprises the steps that S100, arranging a first filler at the position, corresponding to the to-be-installed aerospace equipment, of a cabin plate of a spacecraft; S102, applying a pressure, so that air between the first filler and the deck is exhausted; S104, arranging a film type electric heater on the first filler; S106, arranging a second filler on the film type electric heater; S108, applying a pressure to discharge air among the first filler, the second filler and the film type electric heater; and S110, arranging the aerospace equipment to be installed on the second filler, and exhasuting air between the second filler and the equipment through pressing. The method has the following advantages that the implementation process of the electric heater and the installation process of equipment are synchronously carried out, a traditional gluing mode is not used, and the glue curing time is saved; the whole implementation process is extremely high in operability, and air on the contact interface of the heater and the filler can be effectively exhausted.

The invention discloses a low-melting-point alloy for an automobile tire mould. The low-melting-point alloy for the automobile tire mould is prepared from the following components in percentage by weight: 20 percent to 70 percent of Bi, 0 percent to 0.5 percent of Ni, 0 percent to 1 percent of Ce, 0 percent to 1 percent of Ge, and the balance of Sn and less than 0.05 percent of impurities. The low-melting-point alloy for the automobile tire mould has a good flowing property, a stable recasting performance, no toxicity, no harm to an operator, and no pollution to the environment when being used for casting the mould; the low-melting-point alloy is the poly eutectic alloy, which is low in melting point, easy to melt, convenient to mould, high in alloy strength, and long in mould service life so as to have higher economic benefit.

The invention discloses rustproof air nail hole sealing rubber and a preparation method thereof and belongs to the technical field of metal rust prevention. According to key points of the technical scheme, the rustproof air nail hole sealing rubber is prepared from the following raw materials in parts by weight: 20-40 parts of a solvent, 5-20 parts of a rust remover, 20-40 parts of resin and 1-5 parts of a rheology modifier. The invention also discloses a preparation method of the rustproof air nail hole sealing rubber. The preparation method of the rustproof air nail hole sealing rubber has the advantages that a small amount of environment-friendly and non-toxic solvent and modified polymer resin are used as main raw materials, and the product has strong filling performance on air nail holes and good bonding performance with wood and air nails, so that the rustproof air nail hole sealing rubber hardly falls off or cracks after filling; and the used modified polymer resin has strong weather resistance and water resistance, so that filling materials in the air nail holes hardly expand with heat and contract with cold to generate deformation after repairing and are moistureproof.

The invention provides double-expansion filling mortar. The double-expansion filling mortar per cubic meter comprises, by mass, the following ingredients of 100-120 kg of cement, 340-360 kg of fly-ash, 950-970 kg of sand, 1.84-2.76 kg of a water reducing agent, 50 kg of an expanding material, 0-13.8 kg of silica fume and 310-330 kg of water, wherein the water reducing agent is a polycarboxylate superplasticizer powder agent. The double-expansion filling mortar can be used for the fields including tunneling shields, coal mine backfilling, urban duct backfilling and the like, compared with traditional filling mortar, the mobility and the degree of density of the filling mortar are improved, the delayed coagulation is achieved, in addition, the transformation performance of the filling mortar is improved, and the economic benefit of the filling mortar is improved.

The invention provides a bond made from a halogen-free sheet soft magnetic material, a preparation method thereof and a halogen-free soft magnetic sheet. The bond comprises the following components in percentage by weight: 5-30wt% of polyethylene, 70-95wt% of polyolefin copolymers as well as 0.1-2.0wt% of crosslinking agent and 0.1-1.0wt% of antioxygen. The preparation method of the bond comprises the following steps of: 1) adding the components in proportion into a mixer and uniformly mixing; 2) in an intermeshing co-rotating twin screw set, extruding an infused bar by virtue of a melt extrusion reaction grafting technology; 3) cooling with cooling water at a normal temperature, and then slicing and drying to obtain polyolefin elastomer bond particles. The halogen-free soft magnetic sheet provided by the invention is prepared through the following steps: physically mixing 5-12wt% of the polyolefin elastomer bond, 84-92wt% of neodymium iron boron magnetic powder or ferrite magnetic powder, 0.2-3wt% of non-orthophthalic plasticizer and 0.1-3wt% of titanate coupler; banburying, crushing, screening, rolling, polishing by virtue of UV (Ultraviolet), magnetizing and tailoring to prepare the environmentally-friendly halogen-free soft magnetic sheet which conforms to the requirements on environmentally-friendly ROHs (Restriction of the use of certain Hazardous Substances) regulations.

The invention relates to a film-coated fresh-keeping agent specially used for boiled salted duck eggs. The present invention uses natural degradable polyvinyl alcohol and chitosan as the main substrate, supplemented with stearic acid, glutaraldehyde, whey protein concentrate, nano-TiO2, nano-SiO2, Kelingu, solvents and other materials or Processing aids to obtain coating film preservatives with barrier properties, antibacterial properties and mechanical properties. Through the data of mechanical properties, barrier properties and antibacterial properties of coating films obtained from different formulations, finally obtain special coating film preservation for boiled salted duck eggs agent, the beneficial effects of the present invention are: it can prevent the exchange of materials inside and outside the eggshell and the infection of various harmful microorganisms during the storage process of boiled salted duck eggs, and has a certain antibacterial effect, reducing the loss of dry matter and water, making Cooked salted duck eggs maintain good storage quality, extend the high-quality shelf life, and replace the existing plastic composite retort bag packaging, which can not only reduce the amount of plastic used, reduce environmental pollution, but also reduce production costs and increase profits.

The invention discloses a UV makeup method of large-size unit holographic figures and of an optical structure part for ultrafine processing having a deep trough structure and a device. According to the method, a unit figure mother set is pasted on a glass plane, surface tension of one face of a PET film is increased, a photosensitive negative film is pasted on the other face of the PET film, the PET film is placed on an upper surface of the unit figure mother set, one end of the PET film is pasted on the glass plane, spliced long plaids of the photosensitive negative film are pasted with a mask plate for exposure, a light transmission area on the mask plate and the long plaid on the photosensitive negative film are aligned, the PET film is turned over to expose the unit figure mother set, one or more rows of UV glue are dropped on one end of the unit figure mother set, the UV glue is distributed on a surface of the glue solution, the UV glue in the light transmission area on the mask plate is solidified, a pattern on the unit figure mother set is transferred to the PET film and is attached to a surface of the PET film to accomplish splicing of the pattern. The UV makeup method can realize makeup with high fidelity.

The invention relates to a zone-cured high-filling AB adhesive, the OCA optical adhesive layer in the edge area and other areas have differentiated storage modulus, and the edge area is die-cut without glue overflow. Applied to the filling and bonding of 3D curved tempered glass and 3D cover plate, the curved area of ​​the curved surface is soft and well filled, matching optical transmission and ultrasonic transmission for off-screen fingerprint recognition; it can solve the dimensional tolerance problem of 3D curved tempered glass bonding , there is no white edge on the arc edge and no rebound.

The invention provides the composition, preparation and application of a nerve unit spherical support. A large number of pores are distributed in the nerve unit spherical stent of the present invention, and these pores present a spatial structure radiating from the center to the surroundings. The central hole communicates with all the pores. The diameter of the nerve unit spherical stent is 500-2000 μm, and the diameter of the internal pores is 20-100 μm. The tract contains stem cells and vascular endothelial cells. After the nerve unit spherical stent of the present invention is transplanted, it can achieve multiple purposes such as effective filling of the nerve defect area, rapid reconstruction of the local neural network and microvessels, and achieve the effect of rapid recovery of the function of the nerve defect area.