In the production of green agricultural products, in addition to the selection of excellent varieties, the use of biological pesticides without chemical pesticides, there are many emphasis on planting soil conditions and fertilization methods. Production of green agricultural products requires no pollution of the soil. As a farm producing green agricultural products, it is necessary to stay away from factories with sewage, waste gas and waste residue. Select the production base to collect soil samples in advance, send them to the relevant units for testing, check the residual amount of pesticides in the soil and the content of heavy metals. If it exceeds the standard, it is not suitable for the production base of green agricultural products. To produce green agricultural products, a large amount of organic fertilizer must be added. The production of green by product is mainly obtained by adding organic fertilizer, so it is necessary to build up organic fertilizer. The first is the accumulation of livestock and poultry manure. More livestock and poultry can increase the income of farming and build high quality organic fertilizer. The second is the use of weeds, straw, river pond mud, animal manure, large anti-high temperature compost and grass pond manure. The third is the return of straw to the field. It is required to have about 200 kg of straw returned to the field every season . For the production of green agricultural products, less or no fertilizer should be applied. Excessive application of nitrogen, phosphorus, and potassium fertilizers can contaminate the soil and then contaminate agricultural products. It is necessary to improve the structure of nitrogen, phosphorus and potassium fertilizers, and adopt measures of reducing nitrogen, stabilizing phosphorus and increasing potassium, which is beneficial to the balanced absorption of nutrients by crops. To produce green agricultural products, it is necessary to appropriately increase the application of trace element fertilizers. The application of micro-fertilizer can greatly increase the yield of crops, and at the same time effectively improve the quality of agricultural products and increase the content of trace elements in agricultural products. However, it should be noted that micro-fertilizers should not be applied more, and excessive amounts can contaminate the soil and pollute crops. Produce green agricultural products and irrigate non-polluting water. Water has a great impact on the quality of agricultural products. Inadvertent irrigation will contaminate agricultural products and will also contaminate fish and crabs in farmland.
Polycrystalline Diamond Compact (PDC) drill bits are designed for efficient and effective drilling in various formations, from soft to hard rock. The surface of the cylindrical-shaped PDC cutters consists of premium synthetic diamond particles sintered together by high pressure and high temperature. These cutters have high hardness, wear resistance, and great tenacity, making them ideal for drilling in oil, gas, mining, and engineering fields.
PDC coring bits are designed for use with high-powered drill rigs operating at relatively low rotation speeds. They offer several advantages over surface set bits, including faster penetration, longer drilling life, and better performance in hard rock formations.
The Q series of PDC coring bits , including BQ, NQ, HQ, and PQ sizes, are widely used for soft to medium hard rock formations. The disc-shaped cutting element's surface consists of very fine synthetic diamond particles sintered together by high pressure and high temperature. A tungsten carbide stud is brazed directly into the bit matrix, allowing the cutters to withstand the large compressive and shear loads generated during drilling .
PDC core bits are ideal for use with high-powered drill rigs operating at relatively low rotation speeds. They offer several advantages over surface set bits , including faster penetration, longer drilling life, and better performance in hard rock formations.
Two main types of PDC cutters are available: conventional flat design or dome. The flat design is suitable for general drilling applications, while the dome design is ideal for drilling in hard rock formations.
PDC drill bits are designed to provide efficient and effective drilling in various formations, with advantages including fast penetration, long drilling life, and high performance in hard rock formations. They are suitable for use in oil, gas, mining, and engineering fields and are available in various sizes and designs to suit different drilling needs.
PDC Drill Bits
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