40results about How to "Suitable for environmental requirements" patented technology

The invention discloses a nano modified water-base multifunctional sound-absorbing paint and a preparation method thereof. The paint is composed of the following components in parts by weight: 28-38 parts of emulsion, 2-10 parts of pigment, 30-45 parts of filler, 15-25 parts of water, 4-8 parts of flame retardant and 2.25-5.43 parts of assistant. By optimizing the paint system structure, the polymer and filler are selected, modified and proportioned to ensure the basic mechanical properties and sound-absorbing function, and the paint has high-value service properties, such as thermal insulation, moisture resistance, fire resistance, aging resistance, fouling resistance, sterilization, air purification and the like, and is especially suitable for rooms and other occasions with higher environmental requirements.

The invention relates to a semiconductor chip set at least comprising a semiconductor assembly, a heat-radiating seat, a base plate and an adhering layer, wherein the semiconductor assembly is electrically connected with the base plate and thermally connected with the heat-radiating seat; the heat-radiating seat at least comprises a protruding column and a base, wherein the protruding column upwards extends to pass through an opening of the adhering layer and enter a through hole of the base plate, and the base extends out of the side direction of the protruding column; the adhering layer extends between the protruding column and the base plate and between the base and the base plate; and the base plate at least comprises a first conducting layer, a second conducting layer and a dielectric layer and supplies a horizontal signal route between a weld pad positioned on the first conducting layer and a terminal, wherein the dielectric layer is positioned between the first conducting layerand the second conducting layer. The semiconductor chip set has high reliability and moderate price and is greatly suitable for quantity production and especially suitable for a high-power semiconductor chip set which is easy to generate high heat and needs excellent heat-radiating effect.

The invention belongs to the technical field of printing, and in particular relates to an all-aqueous ink and a preparation method thereof. The present invention adopts hydroxyethyl methacrylate, glycidyl methacrylate, styrene and alginic acid as raw materials to prepare a water-soluble grinding resin solution for quaternary copolymerization to form a base material with stable performance; The all-water-based ink prepared with solvent and water has good fluidity, high color concentration, and good printability; the printed matter has high gloss, good leveling, adhesion fastness and resistance comparable to solvent ink, and no harmful substances remain after drying . Prints are anti-blocking, anti-migration, abrasion-resistant and water-resistant. It can be used for surface printing of shopping bags, medical packaging, transfer bags and food bags printed on the surface of BOPP, PET, PE / PEVA and other plastic substrates.

The invention discloses a heating method for a vibrator and a vibrator realizing the method. The method is like following: steam is conveyed through a steam pipeline into the bearing seat of a vibrator, so that the steam will spray toward the outer casing of the bearing seat; the bearing seat and the surrounding environment are heated, the temperature of the lubrication grease in the bearing seat is increased by heat transfer, and the viscosity of the lubrication grease is reduced, so that the vibration sieve can be started rapidly. The vibrator comprises a bearing seat, a bearing, a vibration shaft and eccentric bodies. The bearing is mounted in the bearing seat, the vibration shaft is supported on the bearing; the two ends of the vibration shaft stretches out the bearing seat, and are respectively connected with an eccentric body; on the bearing seat, a steam pipe for delivering steam is fixed on the bearing seat; on the steam pipe, branch pipelines are connected, each branch pipeline is communicated with a circular pipe surrounding the bearing seat; on the circular pipe, two or more steam nozzles are provided toward the bearing seat. The invention can rapidly and evenly heat the bearing seat, is convenient for starting the vibration sieve, is of simple structure, is easy to operate and environment friendly.

The invention discloses a negative-pressure drug dissolving device, which comprises a push rod and a needle seat. The center of the needle seat is provided with a liquid inlet and outlet. The bracket at the position, the push rod and the needle seat are respectively fixedly connected with the upper end and the lower end of the telescopic tube so that a sealed space is formed in the telescopic tube. The negative pressure drug dissolving device of the invention has the advantages of simple structure, low cost and no pollution in the process of adding drugs.