When the temperature drops to the lower limit of the set temperature, the circulation pump starts and the hot water starts to circulate. Because the paths of the pipeline wells are not the same, the path of the hot water passing through the “No.1 pipeline well†is the shortest and the resistance is minimum, and the circulation is involved. The amount of water is also the largest, and the volume of circulating water in other pipeline wells is decreasing. The diameter of the branch pipe of the circulation pipe is directly related to the heating quality of the entire heating system. When the pipe diameter is selected to be too small and the pipe is slightly fouled, the hot water circulation will be poor, and the water temperature of a certain pipe well will be low. Excessive pipe diameter selection not only increases the cost of the project, but also affects the matching and operation of the circulating pump. The pipeline wells of a building should be blocked at the floor, whether it is fire protection requirements or anti-theft. Some of the plugging materials use fire blocking materials, and some water concrete. In the process of sealing, the pipeline and the plugging material must be filled with a flexible material to ensure that the pipeline and the plugging material are completely separated, so that the thermal expansion and contraction of the pipeline is not limited. Matting Agent For Water Based Coatings
Description
1, Water-based coatings are considered
[green" or environmentally friendly as the VOC content is generally very low or
negligible in quantity. Waterbased coatings can be applied over almost all
ink types utilizing flexo/anilox, gravure, ink-train and roller coaters or
variations of these. Waterborne products have also used in the industrial
finishing of wood, plastic and metal substrates.
2, Silica Matting Agent specialized used
for Matte/Semi-gloss waterbased Coatings. It provided high matting efficiency,
excellent coating appearance and high transparency. As well as low oil
absorption, easy dispersion and smoothly touch with minimal impact of
viscosity. Generally, the untreated products provide highly effective matting
at minimal addition levels, thus enabling the formulation of clear, low-gloss
finishes with high transparency and chemical resistance properties.
Characters
1, Avoids coagulation of shear-sensitive
binders; and reduced micro-foam generation and lower demand for anti-foam or
defoamer additives.
2, Excellent
Transparency. The refractive index of silica is comparable to most resin
systems.
3, Surface
smoothness and improvement in scratch resistance: These silicas have minimal
effect on the physical properties, allowing development of smooth films with
excellent hand-feel, scratch resistance and stain resistance.
4, Easy to Disperse:
Advanced rubbing technology makes narrower distribution of diameter of
granules, so that matting agent can be easily added in any production
procedure and can be easily dispersed, which saves the processing time.
Application Fields
Water-based
furniture paints, water-based wood decorative paints, water-based inks,
water-based industrial paints.
Strengths
1, We are the
leading raw material and technical solution provider to the Paint/Coating/Ink
chemical Industry. We focus on Paint/Coating Market about 25 Years, with
advanced technology and good experience to develop different kinds of silica
matting agent used for different application.
2, We will
continue to invest in research and development, application technology and
production capacities in emerging markets.
3,We are the leading raw material and technical solution provider to the
Paint/Coating/Ink chemical Industry. We focus on Paint/Coating Market about 25
Years, with advanced technology and good experience to develop different kinds
of silica matting agent used for different application, such as Wood and
furniture Coating, Industrial Coating, Coil Coating, automotive coatings and plastic coatings as well as printing inks, leather coating, textile
coating and decorative coatings.
Matting Agent For Water Based Coatings,Carbon Black Matting Agent,Water-Based Matting Agent,Carbon Black Silica Guangzhou Quanxu Technology Co Ltd , https://www.inkjetcoating.com
The path of the pipes for hot water circulation is different
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