Abrasive flap discs, commonly
known as flat emery cloth wheels, flap discs, flower impellers or elastic
discs, are a large variety of coated abrasive conversion products. It is a
method of pressing the cut coated abrasive discs one by one. It is formed by sticking
adhesive to the back cover plate along the circumference.
The Flap Disc is mainly
installed on hand-held Power Tools for grinding and polishing the welds, burrs,
chamfers, surface derusting, surface polishing, etc. of various metal and
non-metal parts. Compared with the resin grinding wheel for fixed abrasives, it
has Grinding and polishing can be completed at one time, shortening the
operation time, saving the cost of grinding, and improving the grinding
efficiency. The abrasive self-sharpness is strong and the utilization rate is
high. The air cooling does not damage the surface. The surface quality is easy
to control and cost-effective, reducing operator fatigue and increasing machine
life. And so on, so it is widely used in various industries or fields of
manufacturing.
The related abrasive products we can supply is Flap Disc Adhesive , Flap Wheels , Bonded Abrasives , and Abrasive Sanding Disc, such as Abrasive Fiber Disc, Sanding Screen Disc, abrasive silicon sandpaper, if you have any needs about abrasive tools, please kindly feel free to contact us.
Abrasive flap disc can be
divided into flap disc, Mini Flap Disc and Flexible Flap Disc according to
their shape. There are subtle differences in usage. The flap disc are
relatively hard and not easy to bend; the blades of flexible flap disc can be
bent at will. Shape, suitable for grinding the edges and corners of the
workpiece; mini flap disc is suitable for grinding smaller workpieces. The
following is a detailed introduction of the flap disc.
According to the
different abrasives, it can be divided into Zirconia Flap Disc,S/C Flap Disc, Ceramic
Flap Disc.
1.Zirconia Flap Disc
Mainly used for high alloy, stainless steel
and heat-treated steel; high-tensile, non ferrous metals.
2.S/C Flap Disc
Mainly used
for marble, stone, glass, and non-ferrous metals.
3.Ceramic Flap Disc
Mainly used for
grinding stainless steel, titanium, inconel, and other hard metals.
At present, flap discs are widely used in automobiles, stainless steel products, metal products, glass manufacturing and other industries, and have special effects on welds, solder joints, flash, rust removal and surface polishing. The reason why the flap disc is so widely used is because it has five advantages that cannot be ignored:
1. The flap disc blades have high hardness, high strength and strong grinding ability during use.
2. The flap disc has low noise, low vibration and long service life during use.
3. The flap disc has strong wear resistance and long service life.
4. It is not easy to generate heat and burn parts during use.
5. The use of flap disc can improve work efficiency.
The flap disc blades can be used instead of resin Grinding Wheels and steel wire wheels. They have a good effect on rust removal, grinding and polishing. It is a good way to polish and remove rust. It is worth choosing!
Abrasive Flap Disc,Abrasive Disc,Toolstation Flap Disc,Silicon Carbide Flap Disc Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.abrasive-jd.com
Fertilization: combination of organic and inorganic fertilizers. After effective soil testing, formula fertilization is based on the soil's previous conditions and cucumber demand to meet crop growth needs. The general crop fertilization law is organic fertilizer plus compound fertilizer plus micro-fertilizer plus active beneficial bacterial fertilizer. The fertilizer is mainly composed of multi-component compound fertilizer and organic fertilizer, and the combination of base fertilizer and flushing application is adopted. This activates the soil layer, which increases the area of ​​root extension and complements the various nutrients required for the plant. Some vegetable farmers are blindly increasing the dosage when fertilizing, such as excessive base fertilizer, which will cause burning seedlings; if the amount of fertilizer is too large, it will easily cause rotten roots and roots. Therefore, it is necessary to master the right amount when fertilizing, and to cultivate in time after applying fertilizer. Biological fertilizers contain a variety of beneficial bacteria, which have the effect of activating soil, increasing ground temperature, and regulating soil nutrients. Therefore, proper application of biological fertilizer can promote root development and improve disease resistance of cucumber.
Watering time: The winter greenhouse cucumber should be watered on a sunny day, because the water temperature is close to the ground temperature, the ground temperature is easy to increase, and there is sufficient time for dehumidification in the afternoon. Therefore, try to avoid watering in the evening and even cloudy days, so as not to cause the occurrence and spread of vegetable diseases.
Watering amount: If the cucumber in the greenhouse is seriously deficient in winter, the amount of water should not be too large. At this time, the soil is prone to lack of oxygen and cause the roots to suffocate and the roots are yellow or even dead.
Water temperature: It is best to choose groundwater for winter cucumber watering. The water temperature should not be lower than 3 °C, and the water volume should be small. On the day of watering, the ground temperature should be restored as soon as possible. At the same time, try to drain as much as possible. If the humidity is too high, it is easy to cause downy mildew and powdery mildew.
Huaxian Liu Huimin 
How to control fertilizer in winter greenhouse cucumber
The management of fertilizer and water in cucumbers in winter greenhouses is very important. If the management of fertilizer and water is improper, it will cause bad phenomena such as rotten roots, roots and yellow leaves. Therefore, I would like to remind the majority of farmers and farmers to pay attention to the management of cucumber fertilizer.
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