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High surface quality, high strength and profound drawability is necessary for the panel to have the basic conditions, the quality of the coating surface quality and sheet surface roughness, cleanliness, strip the chemical composition and the press formability direct relationship, while the hot-dip process The zinc solution components, hot dip equipment also affect the quality of the coating surface important factor. High strength and high drawability galvanized substrate chemical composition, physical properties, heat treatment process as well as hot-dip performance are closely related to the following exposition will focus on foreign and domestic high gear varieties of galvanized plate board coating, substrate, process and equipment other aspects of the development status and trends. 2.1 varieties of foreign trends of galvanized sheet, galvanized sheet coating development status 1) lead-free galvanized sheet coating Beautiful zinc spend is a typical feature of traditional galvanized plate board, to obtain users of all ages, with some commercial value. But studies show that spangle the surface is not flat, the lead content in the coating will affect the corrosion resistance of the coating plate processing performance in subsequent processing, painting, performance and use, and therefore has been studying abroad since the 1960s no spangle and small the spangle production technology. Through the mist cooling 更多：https://www.bmcx.com/ , heurfey The zinc powder spray process, the crystal can increase the number of crystallization nucleation and control crystal growth,Achieve the the production small spangle board of purpose. 2) galvanized plate board alloying coating In galvanized sheet breed, through thermal diffusion treatment after plating, developed alloy galvanized sheet, corrosion resistance increased compared to ordinary galvanized plate board more than doubled through the alloying treatment can eliminate the coating surface spangle ; while reducing the amount of evaporation of zinc in the spot welding, to reduce the spot welder copper electrodes by the extent of the contamination of the zinc vapor, thereby improving the life of the electrode. To ensure good adhesion of the alloyed galvanized plate coating, the outer plate thicker alloyed galvanized plate with a highly efficient heating and cooling measures (high efficiency burner or an induction heater)And is equipped with various types of alloying sensor, timely adjustment of the corresponding structure of the coating, by instrument analysis and computer instructions adapted to produce high-stamping deformation requirements. Due to the conditions used in the stamping molding, in addition to steel matrix having excellent mechanical properties necessary coating (alloy layer), the adhesion requirements are also very demanding. (1) is provided between the alloying of the heating zone and the soaking zone coating reflection factor measured hormone to the alloying of the coating surface was measured, controlling the strip temperature is maintained in the the δ1 phase stable formation temperature range (laser beam method); (2) is provided between the insulation and the spray cooling zone thermometer and emission rate measurement, in order to simultaneously measure the strip temperature and emission rate; (3) after cooling of the strip the alloying phase structure sensor in the appropriate position to measure the thickness of the iron content of the coating and the layer, δ1, Γ and ζ each phase layer (fluorescence method or X-ray diffraction method); (4) strip after an air knife backward alloying blast furnace and the coating thickness (weight), the analyzer (fluorescent x-ray method are provided after the phase structure of the sensor)

High surface quality, high strength and high impact are the basic conditions necessary for the Panel, coating and surface quality sheet metal strip surface roughness and cleanliness, has a direct relation to chemical constituents and stamping, and hot-dip galvanizing process, zinc liquid ingredients, hot-dip galvanizing equipment are also important factors influencing coating surface quality. High-strength and high stamping and galvanized sheet substrate chemistry, physical properties, heat treatment process and properties of hot-dip galvanizing has a close relationship, the following will focus on foreign and domestic high retaining galvanized sheet plate coating, substrate, process and equipment development status and trend. 2． 1 overseas development trend of galvanized sheet, galvanized sheet development situation of coated varieties 1) lead-free zinc-plated Board coating Beautiful spangle are typical characteristics of traditional galvanized plate, thus access to users of all ages, with some commercial value. But studies have shown that surface unevenness spangle, in the coating affect the coating of lead plates in the processing of subsequent processing performance, performance and use of coating corrosion resistance, thus since the 60 's has been studying abroad without zinc flower and small zinc flower production technology. Through the mist cooling 更多：https://www.bmcx.com/ , Heurfey spraying zinc powder technology, you can increase the number of crystallization nucleation of crystals and crystal growth control,Achieve the objective of producing small Zinc plate. 2) of galvanized sheet plate alloy coating In plating Zinc plate varieties in the, through plating Hou hot proliferation processing, development has alloy of plating Zinc plate, resistance corrosion sexual more general plating Zinc plate plate improve has 1 time times above, through this alloy of processing can elimination coating surface zinc spent; while reduced has spot Shi zinc of evaporation, reduced has spot machine copper electrode by zinc steam pollution of degree, thus improve has electrode of life. To ensure the alloyed good adhesion to galvanized coating, for outside plate of thick alloyed zinc-plated Board adopts high efficiency heating and cooling measures (efficient burning Tsui, or induction heaters),Sensor and is equipped with various types of alloying, by instrumental analysis and computer instruction structure in the timely adjustment of the coating to produce suitable for high stamping deformation requirements. When used in stamping forming conditions, in addition to calling for excellent mechanical properties of the steel substrate having the necessary things, plating (alloy layer) adhesion is also very demanding. (1) in the alloying of heating and insulation area set between coated reflection factor determination of pigment, to determination of surface alloying, keep control of strip temperature δ 1 phase formation of stable temperature range (laser beam method); (2) between the insulation and spray cooling zone set high thermometer and emissivity measuring device for simultaneous measurement of strip temperature and emissivity; (3) after cooling of steel alloys in place of sensors to measure the iron content in the coating phase structure and δ 1, γ and ζ in the thickness of the layer (fluorescence or x-ray diffraction method); (4) steel belt after gas knife backward alloying furnace and is set after the phase structure of sensor coating thickness (weight) of determination apparatus (fluorescent x-ray method)

High surface quality, high strength and GaoShenChong sex is panel must have the basic conditions, coating surface quality and sheet surface quality roughness, cleanness, strip steel chemical composition and its stamping formability has direct relation, and at the same time, hot dip process, zinc liquid composition,Hot dip equipment is also influence the surface quality of the coating of the important factors. High strength and high stamping sex and galvanized sheet base plate chemical composition, physical properties, heat treatment process and hot dip properties have close relations, the paper will focus on domestic and abroad with high quality galvanized plate coating varieties, base plate,Process and equipment development status and trend. 2.1 the trend of the development of foreign galvanized sheet, galvanized coating varieties development present situation 1) lead-free galvanized coating beautiful zinc flower is the traditional galvanized sheet plate of typical characteristics, thus obtains the user's favour, have certain commercial value.But research shows that spangles surface out-of-flatness sex, the lead coating will affect coating plate in the sequence processing of processing performance, coating performance and use of corrosion resistance, so since the 60 s have been studying abroad without zinc flowers and small zinc flower production technology. Through the water mist cooling, Heurfey spraying zinc powder 更多：https://www.bmcx.com/ , such as technology,Can increase crystalline nucleation number and control crystal growth, achieve production small spangles plate purpose. 2) galvanized plate alloying coating in galvanized sheet varieties, through after the plating thermal diffusion treatment, the development of the alloying galvanized sheet, corrosion resistance than ordinary galvanized plate doubled above,Through this kind of alloying can eliminate coating surface zinc flower; At the same time reduce the spot welding when the evaporation capacity of zinc, reduce a welder copper electrode by zinc steam pollution degree, so as to improve the service life of the electrode. To ensure that the alloying galvanized coating good adhesion,For plate of thicker alloying galvanized sheet adopted efficient heating and cooling measures (efficient burn nozzle, or induction heater), and equipped with various types of alloying sensor, through the instrument analysis and computer instruction adjust coating corresponding structure, in order to produce high suitable for the requirement of stamping deformation. because in stamping forming of condition, in addition to the requirements steel matrix have the necessary excellent mechanical properties outside, on the coating (alloying layer) adhesion requirements are very strict. (1) in alloying heating area and heat preservation area set up between coating reflection factor measurement element, to determine coating surface alloying,Control steel strip temperature is maintained at δ 1 phase stable formation temperature interval (laser beam method); (2) in thermal insulation and spray cooling zone set up between high thermometer and emissivity determination apparatus, so that at the same time measuring steel strip temperature and emissivity; (3) the cold steel strip in position alloying phase structure sensor to measure the content of iron plating layer and δ 1, Γ and ζ each phase layer thickness (fluorescence method or X - ray diffraction method); (4) steel belt after air knife last in alloying furnace before and after the phase structure sensor are set coating thickness (weight) tester (fluorescence X-ray method)

最新翻译： 随着我国家电行业的发展及家电产品质量、档次的提高，家电用钢材的需求量，product range，镀锌板应用，镀锌板产品主要应用于建筑、轻工、汽车、农牧渔业及商业等行业。近年来，，镀锌板应用 ，镀锌板产品主要应用于建筑、轻工、汽车、农牧渔业及商业等行业。近年来，，国内外高性能热镀锌板发展概况，1、镀锌板行业发展概述 目前我国钢铁工业在品种、质量、成本、服，3）二层合金化镀锌板钢板 合金化镀锌板在涂漆时易发生气泡等涂膜，这个暑假我过得十分快乐，我去了很多地方游玩，有河南、广东、海南、还有，IF钢的出现对钢铁企业的技术水平和管理水平提出了更高的要求。在技术方，这个暑假我过得十分快乐，我去了很多地方游玩，有河南、广东、海南、还有，镀锌板安全操作规程及管理标准，一、镀锌板程序： 1、使用时要开启总开关，并打开操作室室内照明，hardly，