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Temperature requirements for various coatings in the spray line

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Temperature requirements for various coatings in the spray line

  • Categories:News Center
  • Author:Chuangzhi Coating
  • Origin:Attractivechina
  • Time of issue:2019-09-29
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(Summary description)In the spraying production line, there are many links to control the temperature, such as preheating, drying and curing, etc., because the coating must be adhered to the workpiece at a certain temperature to achieve the effect of protecting the workpiece. So, what are the specific temperature requirements for different coatings used in different industries? Come and find out with me!

Temperature requirements for various coatings in the spray line

(Summary description)In the spraying production line, there are many links to control the temperature, such as preheating, drying and curing, etc., because the coating must be adhered to the workpiece at a certain temperature to achieve the effect of protecting the workpiece. So, what are the specific temperature requirements for different coatings used in different industries? Come and find out with me!

  • Categories:News Center
  • Author:Chuangzhi Coating
  • Origin:Attractivechina
  • Time of issue:2019-09-29
  • Views:
Information

    In the spraying production line, there are many links to control the temperature, such as preheating, drying and curing, etc., because the coating must be adhered to the workpiece at a certain temperature to achieve the effect of protecting the workpiece. So, what are the specific temperature requirements for different coatings used in different industries? Come and find out with me!

(1) baking paint

baking paint

    Baking paint is divided into two categories, one type of low temperature baking paint curing temperature is 140 ° C -180 ° C, the other type is called high temperature baking paint, its curing temperature is 280 ° C -400 ° C high temperature baking paint. Usually, the baking temperature is generally 160-220 ° C, but due to the thin film, the heating time is short, so the phosphating film can guarantee its integrity.

(2) Powder coating

Powder coating

    A thin coating of 200 um can be obtained by using a thin electrostatic spray coating (typically 20-60 um), an electrostatic fluidized bed, a fluidized bed, and the like. Due to the poor melt flowability of the powder coating, in order to achieve an appearance smoothing effect. For thick coatings, it is necessary to increase the heating temperature (generally higher than the melting point of 50 ° C) and prolong the heating time, which is likely to cause a decrease in the bonding strength of the coating and even a peeling phenomenon of the coating.

(3) fluororesin and composite coating

    Polytetrafluoroethylene (PTFE, F4) has poor melt flowability even at a high temperature of 380 ° C, and a non-porous coating cannot be obtained, and a coating having a high bonding strength cannot be obtained by phosphating.

    Early non-stick pan: lint processing, wooden shovel cooking. The 2004 China Consumer News has not been used (decomposed carcinogens). At present, it is basically useless and is not suitable for Chinese cooking methods.

spraying production line

    Tetrafluoroethylene-hexafluoropropylene copolymer (FEP, F46), which has the property of thermoplastics, can be used to prepare a dense coating by heating at 300 ° C for 15 min. The disadvantage is that the bonding strength is low - not sticky. The high heating temperature is prone to failure of the phosphate film, and sometimes the phosphating is not as good as the direct coating after pickling. In short: Phosphating is not suitable, mechanical coarsening, chemical roughening, preparation of porous (ceramic) transition layer, cold spray primer and so on.

    The above is the relevant content of " the temperature requirements of various coatings in the spraying production line" . Next, I will introduce the information about the application of graphene in waterborne coatings. Welcome to contact us for updated information!

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Guangdong Chuangzhi Intelligent Equipment Co., Ltd. has a registered capital of 30 million and a self-funded site area of ​​approximately 36000 square meters. It is a high-tech enterprise integrating pre-sales whole plant planning, independent research and development, design, manufacturing, installation, commissioning and after-sales service. (GR20184404259), which owns Guangdong Chuangzhi Machinery Equipment Co., Ltd., Guangdong Ruizhaofeng Software Information Technology Co., Ltd., and Hong Kong Chuangzhi Mechanical Equipment Engineering Co., Ltd., and has obtained more than 130 patents in the field of coating equipment and environmental protection equipment. Based on the Industry 4.0 intelligent manufacturing cloud service and the industrial Internet platform, combined with the three major digital factory management systems of MES, ERP, and PDM, it realizes the remote management, quality control and production traceability tracking of the coating production line manufacturing process, and provides customers with high-quality, efficient, intelligent, Environmentally friendly services, so that customers have no worries when using Chuangzhi products. With 26 years of experience in 3D digital overall solutions for coating production lines, we provide customers with all kinds of non-standard automated coating production lines, coating equipment, environmental protection equipment and other whole plant solutions. At present, it has been widely recognized in the automotive industry, furniture industry, musical instrument industry, cookware industry, home appliance industry, industrial equipment industry and rail transit industry. 

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