The ceramic shaft is formed by isostatic pressing. The ceramic material has high toughness, high flexural strength and high wear resistance, excellent thermal insulation performance, and thermal expansion coefficient close to that of steel. Therefore, the ceramic shaft is gradually replacing the work of the traditional metal shaft. .Ceramic shafts are suitable for operation under harsh conditions filled with corrosive media. When rotating, the centrifugal effect of the outer ring can be reduced by 40%, and the service life is greatly extended. Therefore, when the clearance of the shaft is constant, the shaft can be allowed to work in an environment where the temperature difference changes drastically. It is beneficial to increase the speed of work and achieve higher precision. Alumina Ceramic Shaft,Zirconia Ceramic Shaft Rod,Polishing Alumina Ceramic,Bar Alumina Ceramic Shaft Dongguan Haikun New Material Co., Ltd. , https://www.hkceram.com
Let insecticides achieve the desired effect
Insecticide double, also known as insecticidal dan or the disodium salt of a synthetic compound, is a type of organic insecticide that mimics natural toxins found in silkworms. This biomimetic insecticide is highly effective against a wide range of pests and is widely used in agriculture. The pure form of the product appears as a white crystalline solid with water of crystallization, while industrial-grade versions may look like brown or reddish-brown liquid or loose cylindrical particles.
This insecticide works through contact, ingestion, and mild fumigation, making it particularly effective against pests that feed on leaves and stems. It acts as a neurotoxin, causing symptoms such as excessive salivation and paralysis in insects. Its systemic nature allows it to be absorbed by plants, providing long-lasting protection against infestations.
It is commonly used for controlling pests in crops like rice, fruit trees, and vegetables. For instance, when applied to rice fields, it effectively targets pests such as the rice leaf roller, planthopper, and locust. A typical application involves mixing 200 ml of the concentrate with 50–60 kg of water per acre, or using granules at a rate of 1–1.5 kg per mu (approximately 667 square meters).
For fruit trees, it can be used to treat apple leafhoppers, citrus leaf miners, peach aphids, and pear star caterpillars. Dilution ratios typically range from 25 to 500 times, depending on the target pest and crop type.
When using this insecticide, there are several important precautions to keep in mind:
1. According to pesticide guidelines, it should not be applied more than three times per rice crop, and the last application should be at least 15 days before harvest.
2. Due to its sensitivity to high temperatures, it should not be used on young cruciferous vegetables like Chinese cabbage or cauliflower during hot summer months, as it may cause phytotoxicity.
Always follow safety instructions and local regulations when applying any chemical pesticide to ensure both effectiveness and environmental safety.