Meishen Technology Company
When magnesium
oxide is mixed with water, the following reaction occurs: MgO+HZO=Mg(OH)2 we
call this reaction hydration of magnesium oxide.
The
hydration ratio refers to the ability of magnesium oxide to produce magnesium
hydroxide.
As
the isolation layer of oriented silicon steel before high temperature
annealing, namely magnesium oxide layer, is usually made of MgO and appropriate
amount of water mixed into slurry, coated on the steel plate and dried.
The
free water in the coating is basically eliminated in the drying process.
However,
the formed Mg(OH): this part of the combined water can only be decomposed at a
higher temperature (about 400~600?), so it is carried into the post-process by the steel
coil.
This
part of the combined water brings a lot of trouble to the production, and
directly affects the quality of the coating, thus affecting the quality of the
product and its appearance quality.
In
order to improve product quality and select good magnesium oxide as isolation
coating for silicon steel, this paper analyzes the hydration rate of some
special magnesium oxide products for silicon steel at home and abroad, studies
the relationship between hydration rate and various factors affecting hydration
rate, suspension and so on, and discusses the effect of hydration rate on the
adhesion of finished silicon steel products.
Put
the measuring bottle in the oven at 110? for 1 hour and then cool it to room
temperature in the dryer.
Weigh
1 gram of MgO powder and put it in lintdown with constant weight (Wn). The
total weight was (Wo), put it in a muff furnace at 1000? and burn it for 20
minutes. After cooling, weigh it to constant weight (W).
One
W,Wt one Wnx 100%.
Meishen is the
world's leading producer of magnesium oxide, Magnesium oxide is an oxide of
magnesium, an ionic compound. It is a white solid at room temperature. Magnesium
oxide exists in the form of periclase in nature and is a raw material for
magnesium smelting. Magnesium oxide is white or light yellow powder, odorless,
tasteless, this product is insoluble in water and ethanol, melting point 2852 °
C, boiling point 3600 ° C, magnesium oxide has high refractory insulation
properties. It can be converted into crystal by burning at a temperature above
1000 ° C. If it rises above 1500 ° C, it will form a burnt magnesia or sintered
magnesia.
Magnesium
oxide can be used in the manufacture of metallurgy, smelting, advanced magnesia
bricks, refractory materials and moisturizing materials. It is also widely used
in rubber, rubber sheet, rubber products, pharmaceutical industry, food
industry, plastic sheet accelerator, glass fiber reinforced plastics and
Surface coating of silicon steel sheet, paper production, steel ball polishing,
leather treatment, insulation materials, grease, dyes, ceramics, desiccant,
resin, flame retardant, etc.
Hebei
Meishen Chemical Technology Group is the main magnesium oxide producer in the
world. It is also the largest magnesium salt producer in China and has won the
ISO9002 quality system certification. It also has GMP-Certification.
With
rich experience in the research, development, production, management and
operation of magnesium oxide products, Meishen Group has always attached great
importance to the research and development of new products and strict
requirements on product quality. Meishen has a high-level sales team. The
business covers more than 20 countries and regions around the world. It is
widely welcomed by new and old customers.
Tell:+8613833967259
Email:admin@mgochem.com
Wesite:http://www.72meihouwang.com/
Meishen
has a high-level sales team. The business covers more than 20 countries and
regions around the world. It is widely welcomed by new and old customers.