In the twinkling of an eye, the temperature has dropped linearly. How do you use pesticides to improve the efficacy at this time? Pesticide Xiaobian compiled five tips for winter medication:
1. Choose the medicine for sunny days and high temperature. Because the pests in the winter when the temperature is high, the feeding and breathing intensity is greater than the cold weather, the liquid is sprayed onto the worm body, and the drugs are brought to the body more, which is beneficial to play the poisoning effect.
2. Appropriate increase in dosage. The specifics should be based on the temperature, but generally do not exceed 50% of the regular dose. It is necessary to add water strictly according to the dilution factor, and it is not possible to increase or decrease the amount of water at will.
3. Reasonably select pesticides suitable for winter application. In general, stomach poisons and contact agents are less affected by temperature, and systemic and fumigants are more affected by temperature. Such as enemy killing, dichlorvos and other pesticides, low temperature will significantly affect its insecticidal effect; and deltamethrin, phoxim, stone sulfur mixture and other pesticides, at lower temperatures can still play a better insecticidal effect.
4. Give priority to the use of soil pesticides. Fruit trees are resistant to pesticides during the winter dormancy period. It is economical and effective to control pests with pesticides such as Bordeaux mixture and stone sulphur mixture.
5. Pay attention to extending the safety interval. When pesticides are applied in winter, the degradation rate of pesticides becomes slower, and the residual period of pesticides in crops is also relatively prolonged. When controlling pests and diseases of vegetable crops in winter, special attention should be paid to prolonging the safety interval of pesticides to ensure human health.
Of the several methods now used for fixing super abrasive particles of diamond or CBN to the working surface of an abrasive tool, electroplating is the fastest growing.More and more production operations involve combinations of hard-to-grind materials and complex wheel shapes that virtually dictate the use of electroplated super-abrasive tools.
Characteristically,such tools consist of a precision tool form or mandrel with super-abrasive particles deposited on the working surface and locked in place by electrode position of a bonding matrix,most frequently nickel.The particles are so locked onto the tool surface may vary in size and dispersion to suit the purpose of the tool, but they should lie in a single layer.
Electroplated grinding wheels with nickel bonding can achieve high stock removal rates and high-precision profiles on parts being ground. Depending on the wheel blank design,plating technique, and post-treatment of the single-layer grit structure, many different grinding wheels can be produced using this bond system.There is no need for dressing during the life of the wheel.This avoids downtime and eliminates the need for a dressing device.
When you need to remove more material than polishing will allow,use quality grinding wheels.Diamond Grinding Wheels are used for grinding, shaping,flattening or smoothing of your specific application of stone.The Diamond Tool Store offers a full line of diamond grinding and shaping wheels for many applications that come in many different sizes with desired grits and positions.The product line you will see for grinding tools will reduce the amount of chipping and special shapes and sizes that allow fabricators to get into tight corners for a clean,smooth finish.
Our electroplated grinding wheel are precision engineered to meet the high demands of lapidary,jewelry,gemstone,glass,ceramic,composite,electrical contacts of starters,alternators, motors applications.We offer many stock wheels with varying shapes and grits that will maintain tight tolerances and provide superior form holding when used wet or dry.
Metal Bond Grinding Wheels and Diamond Sintered Grinding Wheel are manufactured using a variety of metal fillers with Diamond or CBN abrasive. Generally, Metal Bond wheels have the hardest matrix, and require coolant.
Diamond CBN Superabrasive Grinding Wheels are available in a variety of sizes and styles, both plain and formed to specific contours. These grinding wheels are designed primarily for grinding such materials as: high carbon; high chrome; high speed steels, such as M2, M3, M7 and T15; die steels, such as: D2, D3, HB, A & O; alloy steels (harder than 50 Rc); nickel and cobalt base super alloys; titanium; stainless steels, etc.offer substantial benefits in grinding exotic alloy steels. Since the CBN crystal resists dulling much better than conventional abrasives, it provides stress-free, cool cutting action throughout its long life. The crystal tends to be self-sharpening as cutting stress increases. The mono-layer wheel structure requires no truing or dressing throughout its life, thereby eliminating truing tool cost as well as non-productive wheel truing time.In addition to this,we also provide the lapidary polishing wheels.
Diamond Lapidary Glass Grinding Wheel
Diamond Grinding Wheels, Lapidary Grinding Wheels, Diamond Grinding Wheel, Diamond Flat Wheel, Diamond Spherical Grinding Wheel, Diamond Textured Wheel, Diamond Profile Wheel, Diamond Engraving Wheel
Hans Superabrasive Material Co., Ltd. , http://www.hansuperabrasive.com