Collets and Collet Bodies Collet And Collet Body Collet And Collet Body,Copper Collet Body,Tig Collet Body,Collet Body For Welding Torch Changzhou Edaweld Trading Company Limited , https://www.edaweld.com
The increase of the light intensity makes the temperature increase effectively. When the temperature increases to a certain degree, the photosynthetic rate does not increase but it decreases, indicating that Sudan grass is entering the photosynthesis/midday break 0, which also indicates that the photosynthetic rate is not synchronized with the light intensity and temperature.
The photosynthesis/midday break 0 phenomenon of Sudangrass occurs from 13:00 to 16:00, and the photosynthetic rate and photosynthetically active radiation are not synchronized. Photosynthesis is a very complex physiological process in plants. Net photosynthetic rate and self factors such as chlorophyll content and leaf thickness Leaf maturity, etc. are closely related, but also by the temperature, light intensity, stomatal conductance, transpiration rate, air relative humidity and other effects. By studying the main environmental factors affecting the photosynthetic rate of Sudan grass, it was found that the temperature was significantly positively correlated with transpiration rate and stomatal conductance, and negatively correlated with relative humidity. This was consistent with the conclusions of studies on other plants, and the light The intensity directly affects the temperature. Therefore, the most important environmental factors affecting the photosynthetic rate of Sudan grass are temperature and light.
The determination of photosynthetic apparatus found that, in addition to its excellent quality as a forage grass, existing studies have shown that Sudan grass has a certain ability to resist salt and drought, and can grow well in salinized soil in arid areas, so it is in Xinjiang. It may become a pioneer plant in ecological restoration. At present, preliminary results have been obtained in the study of fragile ecosystem restoration in the Tarim River Basin. Due to the rapid growth characteristics of Sudan grass, it also has a good application prospect in remediation of heavy metals in soil. In addition to the needs of CO2 reduction and source increase response measures due to climate warming, the high carbon-fixing efficiency of plant sudan grass will inevitably become a research. Hot spots.
Collets directly hold the tungsten in place when you tighten the back cap and create the electrical contact necessary for good current transfer. They are generally made of standard grade copper or tellurium copper.
Collet bodies screw into the TIG torch and accommodate various size tungsten and their respective collets, each of which range in size from .020 to 1/4 inches. They are also made of standard grade copper or tellurium copper.
When choosing collets and collet bodies, you need to consider two main factors.
First is price. Standard grade copper collets and collet bodies are less expensive, but they also tend to be less durable. Less expensive collet and collet bodies are also prone to failure under high temperature applications. After extended use, they do not secure the tungsten as reliably.
Conversely, the more expensive tellurium copper collets and collet bodies have better heat resistance on higher amperage applications. These consumables generally resist twisting or elongating and hold the tungsten more securely after extended periods of use. They also have more tensile strength and less ductility.
You also need to decide between a single- or two-piece system (See figure 1). Typically, manufacturers sell collets and collet bodies separately to match a specific tungsten size. For example, you would purchase a 1/16-inch Collet And Collet Body to match a 1/16-inch tungsten. This system works well and accommodates a wide range of tungsten sizes, especially smaller ones.
Fig. 1 Choosing between a standard two-piece system (top) or a single-piece system (bottom) is one of the factors in determining which collets and collet bodies are best for you.
There are also single piece systems that combine the collet and collet body together. From a performance standpoint, they provide better securing force and are easier to remove when used in a demanding application. The reason for this factor is because the collet mechanism is further away from the heat and less susceptible to heat distortion. They also reduce the possibility of mismatching collet and collet body sizes, allow for quicker tungsten changeover and help simplify parts management.
Study on the Law of Daily Variation of Photosynthesis of Sudangrass with Photosynthesis Instrument
With regard to the daily variation of photosynthetic rate, scholars at home and abroad have conducted extensive research on various plants. It is generally believed that the diurnal variation of photosynthetic rate is a single-peak curve or a double-peak curve. Plants absorb CO2 through photosynthesis and plants act as carbon sinks. The strength of carbon sequestration plays an important role in reducing atmospheric CO2 concentration. Sudan grass is also known as wild sorghum, which is a 1-year-old herbaceous plant of the genus Gramineae. It can adapt to the same environment as sorghum and only matures earlier. Sudan is warm and cold, but it is not tolerant to cold, but has strong drought resistance, rapid growth, strong ability to produce tillers and regeneration, and it can grow 5 to 10cm during the day and night of jointing. It has high carbon fixation efficiency and is one of the grass species preferred for climate change mitigation. The photosynthesis instrument can effectively measure photosynthesis and provide support for the growth and development of crops.