Pesticide residues are important issues for agriculture, rural areas and farmers. If the problem of pesticide residues in agricultural products such as grains, vegetables and fruits is not solved, then the advancement of agriculture, rural areas and farmers will encounter huge obstacles. At present, all walks of life are paying close attention to the issue of pesticide residues . Using the rapid inspection equipment such as the pesticide residue tester , the efficiency of pesticide residue detection has been greatly improved, and the scope of detection is also expanding. The use of instruments to strengthen detection and supervision has provided strong support for solving the problem of agricultural residues of agricultural products and ensuring the quality and safety of agricultural products, and improved the quality and safety of agricultural products in China.
The quality and safety of agricultural products is “safety on the tip of the tongueâ€, and pesticide residues threaten the safety on the tip of the tongue. The problem of pesticide residues is a long-term problem in rural areas and agriculture. It is difficult to solve in a short period of time. However, at this stage, the most effective way to ensure the quality and safety of agricultural products is to strengthen the detection and supervision of pesticide residues in agricultural products. The application of pesticide residue tester can ensure the safety of agricultural products, better control pesticide residues, improve the quality and safety of agricultural products, and build a solid firewall for consumers' food safety.
How to judge whether there are pesticide residues in fruits, vegetables, tea, food, water and soil? In the past, it was necessary to go through a cumbersome operation process before the results were obtained. Now, the use of a pesticide residue tester greatly facilitates the development of pesticide residue detection. The pesticide residue speed measuring instrument is especially suitable for the rapid detection of agricultural product quality testing stations; the fruit and vegetable production base and the professional households before the picking field test; the farmer wholesale sales market on-site inspection; the restaurant, the canteen, the family fruit and vegetable, the tea before the safety inspection, It can quickly detect organophosphorus and carbamate pesticides in fruits, vegetables, tea, grain, water and soil. The birth of the pesticide residue tester not only facilitates the supervision department, but also facilitates the masses, so that more and more subjects are involved in the supervision of pesticide residues, which is of great significance for further safeguarding the safety of agricultural products.
Cold drawn steel bar is produced by Hot Rolled Steel Bar or wire rod to get smooth surface, more precision size, higher mechanical properties, which improves machining characteristics. It can also get various sections and sizes. So cold drawn steel bar is a better choice for machining users.
For high carbon steel or alloy steel bars, to avoid the cracks in inner or surface, the bars are usually required to be annealed before cold drawing.
To get different mechanical properties or hardness depending on final usage, the cold drawn bars will also be heat treated such as annealed, normalized or quenched and tempered(Q&T).
For CNC machines usage, to get much more precision sizes or much more better surface roughness for chrome plating, the cold drawn steel bars can also be centerless ground or polished.
We have more advantages on producing cold drawn steel bars:
1) Big stocks of hot rolled round bars or wire rods as raw materials
2) Wide range of cold drawn steel bar sizes: from 10mm to 150mm
3) Different cold drawing medias powder or oil to get different surface
4) Straightening machines to get better straightness up to 0.5mm/m
5) Grinding and polishing machines to get better roughness upto 0.4um
6) Heat treating furnaces to adjust the mechanical properties
7) Full sets of testing equipment to test the sizes, mechanical properties and microstructure.
8) Multiple packages to avoid broken packages and anti-rusty
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SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdcolddrawnsteelbar.com