The story of Franklin's invention of a lightning rod

The story of Franklin's invention of lightning rods Franklin's most famous discovery was the unification of the sky power and the geoelectricity, breaking the people's superstition about thunder and lightning. During the discharge experiment with the Leiden flask, Franklin faced the flashes and buzzes of electric sparks and could not help but associate it with the lightning of the sky. He realized that the spark of the Leiden flask might be a kind of small lightning. . In order to verify this idea, the lightning in the sky must be led to the ground. On a thunderstorm in July 1752, Franklin made a large kite with silk. A thin wire was placed on the top of the kite, and the wire was connected to the ground with a wire. A copper key was placed on the end of the wire. The key was inserted into a Leiden bottle. Franklin put the kite up in the sky and thundered and threw it down, and saw all the hairy hairs on the silk thread upright. He took his hand close to the copper key and issued an electric spark. Tiandian was finally caught. Franklin found that the Leiden bottles that store the sky electricity produced all the phenomena that electricity could produce. This proves that the sky electricity is the same as the ground electricity. In 1747, Franklin discovered from the Leiden flask experiment that the cutting edge was more likely to be discharged. When he discovered the unity of the sky electricity and the earth electricity, he immediately thought of using the sophisticated discharge principle to introduce the powerful thunder and lightning into the ground. To avoid lightning strikes on buildings. In 1760, Franklin erected a lightning rod on a building in Philadelphia. The effect was very significant.

Stainless Steel Plain Dutch Weave Mesh, also known as wire mesh, it is made of high quality stainless steel wire. Similar to plain weave, it is weaved line by line. But for this kind of Stainless Steel Wire Cloth, the difference is the diameter of the weft is more thicker than the diameter of the warp. The weft wire is close together and then form a conical or wedge shaped hole. There is a big contrast between warp and weft wire diameter and density, so the net thickness and filtration precision and service life is significantly improved than common steel mesh. the filtering precision is running cannot be achieved for plain weave and Twill Weave Mesh screen.

Weaving:  There are two kinds of weaving technology of Dutch woven Stainless Steel Mesh . One is plain Dutch knitting and the other is twill Dutch knitting. The weaving technology of Dutch woven stainless steel mesh combines Dutch knitting and twill weaving techniques. The coarser thread interleaved the finer threads, weaving each thread through the weft. The weft wire is closely aligned to form a cone or wedge open hole.

Features: Dutch woven stainless steel mesh features 4 points:

              1."Zero" mesh, the warp wire diameter than the weft to the larger diameter.

              2. Each weft is very tight

              3. High precision, high liquidity

              4. Filter more solid particles than square or rectangular mesh holes

Material: 201,302,304 (L), 310,316 (L), etc

Application: The Dutch weave Stainless Steel Wire Mesh is one of the best filter medium in hydraulic system, especially the spatial filtering critical applications, as well as the fuel and combustion chamber filter, sediment filter, vacuum filter, etc.

                 

       The warp wire (D1) : all longitudinal braided lines.

        The weft wire (D2) : all horizontal weaving lines.

        Aperture : the distance between two meridians or two weft.

        Mesh number:number of mesh holes per inch.

        Thickness (T) : thickness of wire mesh.

Specifiaction list:

      

Plain Dutch Woven Stainless Steel Mesh
SPEC	NUMBER OF HOLES PER INCH	WIRE DIAMETER	APERTURE(micron)
40	10mesh x 64mesh	0.55x0.42	260
50	12mesh x 75mesh	0.45x0.35	220
80	24mesh x 110mesh	0.35x0.25	160
100	25mesh x 140mesh	0.28x0.20	100
120	30mesh x 150mesh	0.25x0.18	80
140	35mesh x 180mesh	0.20x0.16	70
160	40mesh x 200mesh	0.18x0.13	60
180	45mesh x 220mesh	0.16x0.12	56
200	50mesh x 250mesh	0.15x0.11	50
240	60mesh x 300mesh	0.14x0.09	45
260	65mesh x 320mesh	0.13x0.08	36
280	70mesh x 400mesh	0.125x0.07	34
300	80mesh x 700mesh	0.11x0.039	32

Stainless Steel Plain Dutch Weave Mesh

Stainless Steel Plain Dutch Weave Mesh,Plain Dutch Weave Mesh,Fine Metal Mesh,Stainless Steel Woven Wire Mesh

Anping Xinzheng Metal Wire Mesh Co., Ltd , https://www.sievingmesh.com