The plant growth light is a special kind of lamp used on the plant growth rack. According to the law of plant growth, sunlight must be required, and the plant growth light is a lamp that uses the principle of sunlight to replace sunlight for the growth and development environment of plants. .

Basic information

Name: Grow Light, the light replaces sunlight for the growth and development of plants

Function: Promote growth, prolong flowering period, and improve quality. After application testing, the wavelength of plant light is very suitable for plant growth, flowering and fruiting. Generally, indoor plants and flowers will grow worse and worse with time. The main reason is the lack of light. Irradiation, irradiated by LED lights suitable for the spectrum required by plants, can not only promote their growth, but also prolong the flowering period and improve the quality of flowers.

The application of this high-efficiency light source system to agricultural production such as greenhouses and greenhouses can, on the one hand, solve the drawbacks of the lack of sunlight leading to the decrease in the taste of greenhouse vegetables such as tomatoes and cucumbers. It will be listed before and after the Spring Festival, so as to achieve the purpose of off-season cultivation.

1. As a supplementary light, the light can be enhanced at any time of the day, which can prolong the effective lighting time.

2. Whether at dusk or at night, it can effectively extend and scientifically control the light required by plants.

3. In the greenhouse or plant laboratory, it can completely replace natural light and promote plant growth.

4. Completely solve the situation of watching the sky and eat in the seedling stage, and arrange the time reasonably according to the delivery date of the seedlings.

The significance of greenhouse lighting

The growth rate of plants depends on the light intensity, that is, the amount of light radiant energy absorbed by the surface of the plant, not on the number of light sources.

The significance of lighting inside the greenhouse is to extend enough light intensity throughout the day. Mainly used for growing vegetables, roses and even chrysanthemum seedlings in late autumn and winter. Greenhouse lighting has a huge impact on the growth period and seedling quality. Usually, for tomatoes, light will start after the plant seedlings grow two cotyledons. Continuous light for 12 days can reduce the seedling preparation period by 6-8 days. But more than 24 hours of light will cause plant growth disorder.

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The most important function of packaging is to protect the quality of all packaged goods, that is, to ensure that the goods will not be damaged, lost, leaked and spoiled.

This requires that the seal must have a certain strength and sealing performance in the process of bag making, and can withstand the pressure of a certain weight of content to ensure that the product does not crack or leak during the circulation process, so as to achieve the purpose of protecting the product. And bag making is the last production process before delivery to users, and quality control is more important.

Material selection

Surface material

Most of the non-heat-sealable materials are used, and materials with good heat resistance and small thermal deformation should be considered, such as BOPA, BOPET, BOPP, paper, etc.

Inner material

That is, the heat-sealable material can be heat-sealed at a temperature 30°C lower than the heat-deformation temperature of the surface-layer material. If the temperature is low, the sealing fastness is poor and cannot meet the requirements. In order to improve the sealing fastness, the temperature is raised. Because the thermal deformation temperature difference between the inner and outer layers is too small, the surface material is easily scalded.

For the same heat-sealing material, its heat-sealing strength will increase as the thickness of the heat-sealing material increases. Therefore, the inner layer material of the back sealing bag and the stand-up bag should be more than 30μm thick. If the inner layer material is too thin, it will affect the sealing of the finished bag.

Zipper

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For more details click to visit:https://www.lyhuatianm.com/products-information/summary-of-basic-skills-of-bag-making-mechanism-bag.html

Users who purchase calcium hydroxide equipment production lines usually consult in detail about what standard the calcium hydroxide produced by calcium hydroxide equipment can meet, and purchase corresponding supporting production lines according to their own goals.

At present, the calcium hydroxide powder produced by domestic calcium hydroxide equipment can reach industrial grade use, the fineness is generally 200-400 mesh, and the content is generally 65%-93%. construction and other industries.

The fineness of calcium hydroxide equipment can reach about 325 mesh, and it can produce 6-20 tons of finished calcium hydroxide per hour. If it is produced in 24 hours, it can produce up to 480 tons of calcium hydroxide powder a day, which can meet the high standard requirements of users.

HOW TO ENSURE THE POWDER FINENESS OF CALCIUM HYDROXIDE EQUIPMENT?

For the performance of calcium hydroxide equipment, powder fineness is undoubtedly a very important measure. Users all hope that the purchased equipment can achieve stable powder fineness and ensure powder quality. From the following two aspects to ensure that users buy Equipment to the desired effect and standard.

1. The matching powder selection device is very important. Its main function is to classify and screen the powder processed by the calcium hydroxide equipment, and select qualified finished products. Therefore, for the calcium hydroxide production line, choose the selection that is suitable for your own production line requirements. The size of the powder machine becomes very important.

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For more details click to visit:https://www.ly-gaifeng.com/blog/fineness-adjustment-of-calcium-hydroxide-equipment.html

For students, they naturally hope to use new desks and chairs, but such frequent replacement of new desks and chairs will increase financial expenditures for schools. Besides, steel and wood desks and chairs are of reliable quality and long service life. Longer, regular maintenance can avoid the waste caused by repurchasing new desks and chairs. Therefore, schools should pay attention to the maintenance and maintenance of desks and chairs.

First of all, desks and chairs are generally used in teaching places, and students are the main body of use. Schools should warn students to take care of public property and their own desks and chairs. It is forbidden to scribble on desks and chairs, or even scratch them with sharp objects. , causing permanent scars. The desks and chairs should be handled with care, and violent behaviors, such as smashing and smashing, should be prohibited.

In addition, to stop desk culture, it is not advisable to write poems and draw pictures on desks and chairs. Therefore, it is necessary to build bricks from the overall quality of students and school education.

At present, the design of student desks and chairs needs to consider many factors. The designed and produced student desks and chairs must meet the most basic three performances, and such student desks and chairs can be qualified.

1. Practical performance

This is the primary condition for the design of desks and chairs. The design of student desks and chairs must meet his direct use and meet the needs of students. This is the most basic. If the needs of students cannot be met, no matter how beautiful the appearance is Just empty shelves, meaningless.

2. Comfortable performance

This is the demand for high-quality life now. The comfort of student desks and chairs is also a reflection of the value of desks and chairs. The designed student desks and chairs must conform to ergonomics, and can also have detailed observation and analysis of life. In order to design comfortable products.

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For more details click to visit:https://www.aoyangschoolfurniture.com/aoyang-news/school-desks-and-chairs-maintenance.html

The slewing bearing is an indispensable part of the excavator slewing device. Whether the excavator can turn left or right during work is inseparable from the credit of the slewing bearing. The slewing bearing is mainly used to support the quality of the upper body and bear the working load. Due to the heavy load operation of time and the influence of the environment, the phenomenon of inflexible operation will appear after a long time, which will cause a lot of trouble when we use it, and there is no way to work well.

Reasons for inflexible operation of excavator slewing bearing

Reason 1: The slewing bearing gear is deformed or broken, causing jamming or inflexible movement.

Solution: Repair the gear, re-weld the gear.

Reason 2: There is a problem with the sealing system of the slewing bearing, which will enter debris, such as stones, sand, etc., resulting in stuck or insensitive movement.

Solution: Clean up all the debris.

Reason 3: The newly purchased product is inflexible in idling. Check the production date of the slewing bearing. If the time is long and the climate is cold, it may be mixed with salt mist in the raceway, which will cause the rotation resistance to multiply and make the slewing bearing run poorly.

Remedy: If it can run after afterburning and there is no other abnormality, it can be used normally.

Reason 4: overload operation, resulting in inflexible movement of the slewing bearing.

Corresponding solution: The workload needs to be reduced.

Reason 5: The position of the slewing bearing is not flat.

Solution: Need to change the platform position and work in a flat position.

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For more details click to visit:https://www.excavatorbearing.com/a/bearing-knowledge/excavator-slewing-bearing-is-inflexible.html