78results about How to "Good plating performance" patented technology

The invention provides a polyphenyl ether / ABS (Acrylonitrile Butadiene Styrene) alloy which is prepared from the following raw materials in percentage by weight: 10-60% of polyphenyl ether, 10-60% of ABS, 2-20% of flexibilizer, 1-10% of compatilizer, 0.2-0.6% of antioxidant and 0.2-0.6% of lubricant. The invention also provides a preparation method which comprises the following steps of: firstly blending and extruding the polyphenyl ether and the compatilizer (maleic anhydride), and then extruding with other raw materials and granulating. In the preparation process of the polyphenyl ether / ABS alloy, the compatibility between polyphenyl ether and ABS is improved by use of the fractional mixing compatibility technology and unique compatilizer, thus the polyphenyl ether / ABS alloy has the advantages of good mechanical properties, excellent appearance, high impact resistance and insulating property, low cost and the like, is easy to process and form and resistant to solvents, can be electroplated, and has wide application prospects.

The invention discloses a preparation method of a crucible with a tungsten coating. The preparation method comprises the following steps: (1) a needed pure tungsten, pure molybdenum or molybdenum alloy crucible base material is obtained through a specific processing technology according to a needed size; (2) a certain degree of surface roughening treatment is performed for the obtained crucible base material; and then, the surface is cleaned to remove an oxide layer; and (3) tungsten hexafluoride serves as a raw material, hydrogen serves as reducing gas, and the chemical vapor deposition (CVD) is performed for the surface of the crucible base material under the condition of the base material temperature of 350-600 DEG C to form a tungsten coating layer with the thickness of 0.01-3 mm so as to obtain a crucible product coated with the tungsten coating layer. The CVD tungsten coating layer with high purity and high compactness has excellent metal or nonmetallic solution corrosion resistance, so that the protecting effect on the crucible basal body is achieved, and the service life and the performance of the crucible under such high-temperature environments as metal or nonmetal smelting and crystal growth are prolonged and improved.

The invention discloses a plasma evaporation deposition lanthanide thermal barrier coating ceramic layer with a long service life, a high insulation performance and a composite structure, and a preparation method thereof, and belongs to the technical field of thermal barrier coating. The ceramic layer material comprises lanthanum zirconate or cerate; the thermal barrier coating comprises a bonding layer, a first ceramic layer and a second ceramic layer which are prepared on a base body, wherein the first ceramic layer adopts a YSZ coating; the second ceramic layer comprises the lanthanum zirconate or cerate; in the preparation method of the ceramic layer, the pressure of a vacuum chamber is lower than 1 mbar; through adjusting parameters of spraying electric power, current, gas flow rate, temperature of the basal body, powder feeding rate, spraying distance and the like, the YSZ coating layer and the lanthanide thermal barrier coating ceramic layer which are provided with microstructures of columnar crystal structures, layered structures, layered structures and columnar crystal structures, or nano- structured coating and the like can be obtained. The service life of the thermal barrier coating is long and the heat-insulating property is favorable.

The invention discloses a method for preparing a thread wear-resistant, corrosion-resistant and anti-locking coating by using multi-arc ion plating. The method comprises: 1. polishing, ultrasonic cleaning and drying the metal thread in sequence; Sandblasting roughening of the threads; 3. Sputter cleaning the metal threads roughened by sandblasting to obtain surface-activated metal threads; 4. Coating the surface-activated metal threads for the first time under an argon atmosphere. Obtain a metal thread with a Ni transition layer on the surface; 5. Under an argon atmosphere, perform a second coating on the metal thread with a Ni transition layer on the surface, prepare an AgPd coating, and obtain a metal thread with a Ni-AgPd coating on the surface. The invention adopts multi-arc ion plating to prepare Ni-AgPd coating on the thread surface, and the added Pd ensures the wear resistance of the Ni-AgPd coating, improves the thermal stability and corrosion resistance of the Ni-AgPd coating, and solves the problem of Locking problem of fasteners.

The invention discloses ultraviolet curing vacuum coating metal primer capable of achieving electrostatic spraying and a preparation method thereof.The ultraviolet curing vacuum coating metal primer capable of achieving electrostatic spraying is prepared from, by weight, 5-20 parts of urethane acrylate, 10-20 parts of epoxy acrylate, 0-5 parts of pure acrylate, 5-10 parts of polyesteracrylate, 30-40 parts of trimethylolpropane triacrylate, 10-20 parts of low-functionality active diluted monomers, 2-5 parts of photoinitiator, 0.05-0.1 part of a flatting agent, 0.05-0.5 part of adhesion promoter, 0.01-0.5 part of a conductive agent and 3-5 parts of electrostatic thinner.The ultraviolet curing vacuum coating metal primer prepared through the method can be used for electrostatic spraying, has the advantages of being good in coating performance, good in adhesion, high in salt fog resistance, high in production efficiency, high in paint utilization rate and the like, and has wide market prospects.