1. High hardness and abrasion resistance; Hardness is the basic characteristic that engraving tool materials should have. The tool must cut the material from the workpiece, and its hardness must be greater than the hardness of the workpiece material. The tool material hardness is generally above 60HRC. Wear resistance is the ability of the material to resist wear. Generally, the higher the hardness of the tool material, the better the wear resistance. The finer the grain and the more uniform the distribution of the material, the higher the wear resistance.
2. Sufficient strength and toughness; To make the tool work under great pressure and impact and vibration during cutting without chipping and breaking, the tool material must have sufficient strength and toughness.
3. High heat resistance; refers to the performance of the tool material to maintain hardness, wear resistance, strength and toughness at high temperatures. The higher the high temperature hardness of the tool material, the better the cutting performance of the tool and the higher the cutting speed allowed; in addition to the high temperature hardness, the tool material should also have the ability to resist oxidation at high temperatures and good resistance to adhesion and diffusion Ability.
4. Good process performance; In order to facilitate manufacturing, it is required that the tool material has good process performance. Common problems and solutions of various carving tools
5. Economy: Economy is one of the important indicators of tool materials. Some tool materials are expensive, but because of their long life, the cost allocated to each part is not necessarily high.
6. Predictability of cutting performance. With the development of processing automation, cutting performances such as tool wear and tool durability are required to have good predictability.
PPF (luminous flux density) is an indicator used to measure the light energy output of plant lamps, indicating the flow of light energy through a unit area in a unit time. The higher the PPF, the following effects on plant lights:
1. Provide more adequate light energy: high PPF means that plant lamps can output more light energy, which is very important for plant photosynthesis. Photosynthesis is a key process for plant nutrient synthesis and growth, and high PPF can provide more adequate light energy and promote the efficiency of plant photosynthesis, thus promoting plant growth and development.
2. Promote the photosynthesis efficiency of plants: plant lamps with high PPF can provide more intense light, so that the chlorophyll on the leaves of the plants can absorb light energy more fully, thus improving the efficiency of photosynthesis. The improvement of photosynthesis efficiency can increase the nutrient synthesis capacity of plants and promote the growth and development of plants.
3. Increase the yield and quality of plants: high-PPF plant lamps can provide more intense light and promote the growth rate and yield of plants. In agricultural production, the use of high-PPF plant lamps can increase the yield of crops, and the quality of crops may also be improved due to the increase in light intensity.
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