46results about How to "Excellent plating property" patented technology

Disclosed is a wrought magnesium alloy having excellent strength and extrusion or rolling formability, and a method of producing the same. The wrought magnesium alloy comprises 0.1 - 1.5 at% group IIIa, 1.0 - 4.0 at% group IIIb, 0.35 at% or less of one selected from the group consisting of groups IIa, IVa, VIIa, IVb, and a mixture thereof, 1.0 at% or less of group IIb, and a balance of Mg and unavoidable impurities and thus has a second phase composite microstructure. The wrought magnesium alloy of the present invention has high strength, toughness, and formability in addition to the electromagnetic wave shield ability of magnesium. Accordingly, the wrought magnesium alloy is a material useful to portable electronic goods, such as notebook personal computers, mobile phones, digital cameras, camcorders, CD players, PDA, or MP3 players, automotive parts, such as engine room hoods, oil pans, or inner panel of door, or structural parts for airplane.

The present invention is a quartz glass fiber-containing prepreg, which is characterized by including: (A) a quartz glass fiber; and (B) a curable resin composition, wherein at least one condition ofconditions: (1) a dose of alpha-ray contained in the quartz glass fiber is 0.005 c / cm<2>*hr or smaller, and, each of metal ion contents of Na<+>, Li<+> and K<+> is 1 ppm or lower; (2) the quartz glassfiber contains the number of foams of 10 foams / m<2> or smaller a unit area; and (3) the quartz glass fiber-containing prepreg has the common bending stiffness in the range of a thickness of 100 to 200 [mu]m measured by a method described in JIS R 3420:2013 of 500 N*m<2> or larger is satisfied. This provides a quartz glass fiber-containing prepreg that has particularly excellent dielectric characteristics, has excellent dielectric characteristics and the heat resistance, and / or has high handling property because of high bending stiffness characteristics.

The invention discloses a laser direct structuring material with good comprehensive performance. The laser direct structuring material has good heat stability and high toughness, and is particularly applicable to laser direct structuring. The laser direct structuring material is prepared from the following ingredients in percentage by weight: 65 to 95 percent of polycarbonate, 1 to 20 percent of laser direct structuring additives, 1 to 15 weight percent of tougheners, 1 to 10 percent of inorganic nanometer particles and 0 to 2 percent of other different additives, wherein the laser direct structuring additives comprise a copper-containing laser direct structuring additive and a tin-containing laser direct structuring additive; the ratio of the copper-containing laser direct structuring additive to the tin-containing laser direct structuring additive is (1 to 10) to (9 to 10). The invention also discloses a method for preparing the laser direct structuring material. The laser direct structuring material obtained by the method shows high heat stability and high notch impact strength (being greater than 500J / m) in the processing process.

The substrate includes: a laminated wiring board formed with a conductive layer; a through hole penetrating through the laminated wiring board; a through hole plating layer (7) electrically connected to the conductive layer; and a metal sheet (10) arranged on the through hole plating layer Inside of (7), a protrusion (8) directly in contact with the through-hole plating (7) and a separation portion (9) at a position spaced from the through-hole plating (7) are formed on the side of the metal sheet (10) , the space surrounded by the separation part (9) and the through-hole plating layer (7) is covered with a metal plating film (13), and the inner side of the plating film (13) is filled with a filling material (14).

One aspect of the present invention relates to a low-specific-gravity clad steel sheet having excellent strength and plateability, the clad steel sheet comprising a base metal, and a clad material provided at both sides of the base metal, wherein the base metal is a ferritic-austenitic duplex lightweight steel sheet comprising, by wt%, 0.3-0.7% of C, 2.0-9.0% of Mn, 4.5-8.0% of Al and the balanceof Fe and inevitable impurities, and the clad material is a ferritic carbon steel comprising, by wt%, 0.0005-0.2% of C, 0.05-2.5% of Mn and the balance of Fe and inevitable impurities.

The present invention provides a thin steel sheet having a TS of 590 MPa or more, an excellent strength-ductility balance, a low yield ratio, an excellent in-plane anisotropy of YP, and excellent platability. A thin steel plate having a specific composition and having a steel structure that contains predetermined amounts of ferrite and martensite in terms of area ratio, the average grain size of ferrite is 20 μm or less, and the The average size is 15 μm or less, the ratio of the average grain size of ferrite to the average size of martensite (average grain size of ferrite / average size of martensite) is 0.5 to 10.0, and the above-mentioned martensite and The above ferrite hardness ratio (hardness of martensite / hardness of ferrite) is not less than 1.0 and not more than 5.0, and the texture of ferrite is measured by the inverse strength ratio of γ-fibers to α-fibers It is 0.8 or more and 7.0 or less, and the tensile strength is 590 MPa or more.

The present invention provides a method for manufacturing thin steel sheets, plated steel sheets, hot-rolled steel sheets, cold-rolled full-hard steel sheets, and thin steel sheets having a TS of 980 MPa or more and excellent bendability and platability. It has a predetermined composition and contains at least one selected from Ti: 0.003 to 0.100%, Nb: 0.003 to 0.100%, and Mo: 0.005 to 0.500%. In the range of 20 μm from the surface in the thickness direction, the polygonal ferrite is 0 to 80%, and the sum of martensite, bainite and retained austenite is 20 to 100%. The amount of Mn in the martensite existing in the range of 20 μm in the direction: [Mn] SM With the amount of Mn in the body: [Mn] B meet [Mn] SM / [Mn] B ≤1.5, at the position 300 μm away from the surface in the thickness direction, the martensite is 20-50%.