The "two rows and two wires" hanging vines are the most widely used method of hanging vines. The slings are divided into four and then hung on the four main branches of the same plant, which are tapered. "When the crane costs a lot of money, it is simple and quick to use a rope to ha
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Read more1. The origin of the problem Metal cutting fluids play an important role in metal cutting and grinding processes. The selection of a suitable metal cutting fluid can reduce the cutting temperature by 60-150 ° C, improve the surface quality by 1 to 2, reduce the cutting resistance by 15% to 30%,
Read moreResidential anti-theft: The end of the year, criminals have the mentality of "learning again" before the theft of residential buildings will increase. Police tips: 1. If the next door is a vacant room or a room under renovation, anti-theft measures should be taken on the windows and balc
Read moreServo drive computer control system CNC control software First, the composition of the computer numerical control system and the functions of each part For CNC machine tools, the main control contents are: (1) Function control: The control information is automatically read in, so that the nu
Read moreYi Yang magnetic submersible pump is developed after years of patented product, which achieved a major breakthrough in the field of submersible pumps worldwide, effectively solve the traditional submersible pumps have all the drawbacks: such as low conversion efficiency, easy bearing Loss, high powe
Read moreCabbage leaves as a product and is most sensitive to nitrogen requirements. However, when the amount of nitrogen is too high and the phosphorus and potassium are insufficient, the cabbage plants are long, the leaves are large and thin, the ball is not tight, and the water content is large and t
Read moreMany of the instructions that are often used in machining centers are the same as CNC machines, and are not mentioned here. Only some of the instructions that reflect the characteristics of the machining center are described below: 1. Stop the calibration instruction G09 accurately Instruction fo
Read more1 Effect of alloying elements Copper element The aluminum-copper alloy-rich aluminum partial equilibrium phase diagram is shown in the figure. At 548, the greater solubility of copper in aluminum was 5.65%, and when the temperature dropped to 302, the solubility of copper was 0.45%. Copper is an i
Read moreFor a long time, the main edge of the twist drill has been designed as a straight line. In 1990, Fugelso MA found that because the main edge of the taper twist drill was required to be straight, the back angle of the main edge near the core was too small. If the drill was rotated about its own axis
Read more(3) Temperature distribution in the thickness direction of the product. The temperature at which the article is ejected is an important factor in determining whether the cooling time is reasonable. If the temperature is too high, it is necessary to strengthen the cooling or extend the cooling time a
Read moreAccording to the report of "Daily Science", Swedish and Finnish researchers have established a new type of food testing method that can rapidly and accurately probe pathogens carried by food, which will provide effective help for food safety supervision. The related papers were published
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