The fluorinated mica crystals have very good
high temperature resistance, corrosion resistance and light transmission
properties, and can work for a long time at a high temperature of 1100°C.
No reaction occurs
with strong acids and alkalis; complete light transmittance (pure and
transparent). The natural mica plates traditionally used in the observation
window of high-pressure boiler water level gauge are all brown, and the light
transmittance is not good, and the temperature resistance is in the range of
200-700°C, especially the corrosion resistance is poor. The boiler steam drum
water in thermal power plants contains alkali. After reacting with natural mica
and alkali, it is washed with hot air and hot water, and it is prone to
fluffing, scaling, and being broken. In the short term (about 1-2 months), the
water level is not clearly understood. After being broken, it can easily cause
leakage. The fluorite mica does not react with the acid-base solution, and does
not react with water in the hydration reaction, so that it does not form a
layer, does not scale, and does not break. In the long-term (2 to 3 years)
scouring of high-temperature and high-pressure water (including acid and
alkali), the original clarity and transparency can still be maintained. In
China, it has been widely applied to the observation window of steam boiler
water level gauge in high-pressure boilers of thermal power plants. It has also
been selected by Japanese BBK company and NDK (Colin) company for the
observation window of high pressure boiler drum level gauge.
Mica High Pressure Gasket,High Pressure Gasket,High Pressure Resistant Material,Full Size High Pressure Gasket Changchun City Taiyuan FluorphlogopiteCo. Ltd. , https://www.micaslice.com
Garlic tomato leaves kill red spiders, when there are red spiders on the fruit trees, use garlic (smashed into mud) 2 parts, 1 part of water mixed evenly, take the filtrate spray. Or use fresh tomato leaves (smashed into pulp) to add water 2 times and soak for 5 hours, then take the filtrate to spray vegetables or fruit trees, which can effectively kill the red spider.
The mothballs can cure dry pests such as cockroaches, scapularis, mulberry cattle, mango sac, and moths, which are economical and effective. The method is: cutting the camphor fine into pieces of soybean-sized pieces, finding out the newly-killed wood residue of the larvae of the larvae or the newly-extracted sputum or the slag of the sputum, and inserting 3-5 capsules into the hole. The pieces are crushed and then sealed with yellow mud to prevent air leakage, and the insecticidal effect is generally more than 85%. Check once every 7-10 days. If new manure and wood residue are discharged, do it again as above. The larval activity time can be controlled in spring, summer and autumn.
Spraying insect corpse liquid to infest insects to artificially capture pests 50-60 Shengren pottery smashed into pulp, add a little water and ferment in the sun for 45-50 hours, until you can smell the rancid smell, filter with gauze Take the filtrate, add 40 kg of water per 0.1 kg of liquid medicine (worm corpse), spray it on the fruit trees from 9:00 am to 5:00 pm. After the pests smell the same kind of corpse, they will refuse to eat and starve to death.
The three-ply-painted miniature insects are coated with orange-yellow paint on both sides of the larger plywood. After drying, they are coated with a layer of oil and butter. The distribution is hung in the orchard, aphids, whitefly, and Liriomyza sinensis. The pests will self-invest in the old net, and it will be better to change the paint and mix the oil in a week.
The sweet and sour rotten fruit traps the golden tortoise shell, which uses cooked and sour figs, rotten watermelon, etc., together with sweet and sour liquid (brown sugar, vinegar, water 1:3:16) into the pottery pot, the support is distributed in the orchard, every 2 - 3 days to collect the golden tortoise shell in the sputum.
Trunks tied with grass and worms from late August to early September, pests such as leaf miner, leaf curler, spider, and whitefly are gradually looking for trunks or submerging to appropriate wintering places. When tying a straw on the trunk, it is a wintering place for pests. Before the temperature rises in the spring of the second year, it will be concentrated and burned to reduce the winter base of pests, which can get twice the result with half the effort.
Summer and autumn fruit wood pest ecological control method
Autumn is the ripening season of fruit trees, and it is also the season of pests. At this time, the use of drugs for pest control will inevitably affect the quality standards of green production of fruits, adopt ecological control methods, be scientific and practical, and have no pollution to fruits, save labor and provinces. This is good.
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