self tapping washer head screws

First, cold galvanized wire production process before treatment. Before galvanizing, a series of pre-treatment work on the steel wire is required, mainly including pickling, dissolution and brine or alkali washing.
In white iron, its carbon and iron together into iron carbide, crack appears white, very strong and brittle quality, for the material of malleable steel. The alloy grade consists of various alloying elements with different compositions and structures. Because alloying elements in iron ore can make copper through the material thickening degree of strengthening, hardness, impact force, strength resistance, closing rate, elongation, so alloying iron in the exercise of high quality iron, is the primary supplementary element.
Hexagonal cage has a wide range of applications, with the progress of science and technology, has been extended to the major hydraulic engineering, civil engineering. Geotechnical engineering and other projects. In the hydraulic hexagonal cage in the river construction to reach the utility, that is appropriate and the use of hexagonal cage used to fill stone, fixed river, can avoid river erosion bring water and soil loss. In the civil engineering project, the hexagonal cage is considered appropriate and the use of similar particle size volume particle filling, cage between the formation of a mesh wall, which is the stone cage mesh retaining wall.
Arrived in other ways can’t end effect of the inclination of hook flower network structure in essence is void, water permeability, the natural effect of groundwater and filtering effect has a strong inclusive, suspended in the water content and silt accumulation in fill in crevices, applied to mountain protection, is conducive to the growth of natural plant, beautify the grass spraying to arrive late his curing effect, Gradually restoring the original ecological environment is a perfect link between beautification and protection.
Post time: 27-12-22
When galvanized wire out of the light plating should be carried out light treatment. The bath temperature of galvanized wire should be controlled well. Galvanized wire, also known as hot dip zinc and hot dip galvanized, is an effective way of metal corrosion prevention, mainly used in various industries of metal structure facilities. It is to immerse the steel parts after rust removal into the molten zinc liquid at about 500℃, so that the surface of the steel member is attached with zinc layer, so as to play the purpose of anticorrosion.
Post time: 27-07-22
As a very important product of the barbed rope factory blade barbed rope can be said to have made a great contribution, but often due to the opaque processing process often do not get the trust of customers.
The most obvious gap in a short time is the cross section. Because the hot-dip galvanized barbed rope is surface anticorrosive treatment, there will be rust in the cross section, while the stainless steel barbed rope because the internal raw materials are consistent with the surface raw materials, so there is no such situation.
As we all know, the mechanism of resistance to atmospheric corrosion of zinc includes mechanical protection and electrochemical protection. Under the condition of atmospheric corrosion, there are ZnO, Zn(OH)2 and basic zinc carbonate protective film on the surface of zinc layer, which to a certain extent slows the corrosion of zinc. When this protective film (also known as white rust) is damaged, a new film will be formed.
Post time: 22-03-23
3. Put zinc block into the plating aid pool regularly, so that the bivalent iron in the plating aid becomes trivalent iron, and it is an important measure to stabilize the PH value in a numerical range. At the same time, it is convenient for the filter to filter out the trivalent iron ions in the plating aid; Ferric ion is controlled between 0.3 and 1.0g/L; When hydrogen is not released in the plating aid, the zinc block is continued. It is an effective measure to reduce zinc slag, improve the fluidity of zinc liquid and reduce the thickness of zinc layer to play the role of plating aid filter.
The advantages of the blade stabbing rope (1) lightweight, high strength, never rust, good softness, fatigue resistance, impact resistance, breaking force, the overall structure is strong and durable, the service life is more than 30 years; (2) Close to nature, green environmental protection, highly effective protection of bird feathers and animal skin, effectively prevent rodents and other animals from biting, to give animals a safe and comfortable living environment; (3) Good visibility through l, luxurious appearance, novel style, itself is a big landscape. We can send you samples and make sure they are consistent. Our TECHNICIANS and ENGINEERS can also visit our factory free of charge for site investigation and design. According to your requirements and specific application environment, we can provide detailed material, rope diameter, hole distance and overall structure advice to guide installation.
Stainless steel blade barbed wire production process is similar to galvanized blade barbed wire production process, usually according to the mold to determine the size of the blade.
B. When the thickness of the plating is greater than 4 mm, the zinc adhesion should not be less than 610g/m, that is, the average thickness of the zinc layer should not be less than 86 microns.
First of all, we need to understand that the electrical conductivity of the wire depends on its material and size, and is not affected by the surface treatment method. Whether galvanized treatment or wire drawing treatment, they are the surface of the steel wire treatment, will not change the basic physical properties of the steel wire, electrical conductivity will not be affected. Therefore, in theory, the galvanized wire drawing treatment should not have any effect on the electrical conductivity of the steel wire.
The antisepsis of these materials is very different, the use of life is not the same. Cold galvanized cattle net, also known as electroplating, galvanized amount is small, rust in rain, but the price is cheap, the service life is 5-6 years. The amount of zinc on hot dip galvanizing (low zinc and high zinc) is about 60g to 400g, the service life is about 20-60 years, and the corrosion resistance is general.
There are a variety of arc, non-divergence Angle and non-divergence height ladder types installed to provide ideal treatment plans. It can be used together with the appearance and the common design of the trackless active shift door, forming a harmonious and intact whole.
Traditional barbed wire is crisscross woven into the wire, with the development of the economy, the rapid rise of all walks of life, the limitations of the use of traditional barbed wire gradually exposed, such as: aquaculture, to the chicken circle cage can not be too dense, the wire can not be too thick, woven mesh wire once the mesh will become soft. We also have coping methods: 1, cotton gouging, rolling straight wire into wavy shape, but still not enough to raise chickens with mesh can only be extended to the beak can not feed! 2, is the electric welding net, with the current of the longitude and weft wire spot welding together, the mesh is not limited to do more.
Electric welding net is also known as external wall insulation wire mesh, galvanized wire, galvanized electric welding net, wire mesh, row welding net, touch welding net, construction net, external wall insulation net, decorative net, wire mesh, square eye mesh, screen mesh, anti-crack mesh. Stainless steel electric welding mesh, is made of high quality stainless steel wire row welding, more acid resistance, alkali resistance, welding firm, beautiful, widely used and so on.
When using these two products, it is obvious that there is a gap between them. By pulling or bending the wire, it is often difficult to restore the original, for example, if the same place is repeatedly bent, it will be found that it has broken, and the cold drawing wire will not. Cold drawing wire compared with iron wire, its hardness, tensile resistance, bending ability is greatly enhanced, suitable for building materials.
Greenhouse special electroplating process iron wire blackening solution:
Because of the high carbon content, simple cracks occur during water quenching, so double liquid quenching (water quenching + oil cooling) is mostly used, and oil quenching is mostly used for small cross section parts. This type of steel is generally used after quenching by medium temperature tempering or normalizing or in the surface quenching state. Mainly used for manufacturing spring and wear-resistant parts.
If the surface of galvanized wire hair black, galvanized layer is thin and uneven, this galvanized wire is partly because the inventory storage time is longer, it may also be because the production technical requirements of galvanized wire, do not meet the standard standards and lead to galvanized wire quality problems. According to the use of galvanized wire is different, galvanized wire has soft and hard, so the galvanized wire for binding requires the flexibility of galvanized wire is better, the flexibility of galvanized wire is good, which can facilitate the operation of workers.
Great attention should be paid to pickling of large rolls of galvanized wire. Acid is highly corrosive. Therefore, when adding acid, the acid must be poured into the water, and it is along the wall of the cylinder, and not thrown down at once, so as not to cause splashing. Remember the order of acid pouring, acid into water rather than water into acid, water into acid will cause splashing and boiling, when pouring acid must wear protective glasses, beside must ensure that there are no non-professional people watching, so as not to cause some acid splashing danger.
The material of the blade can be roughly divided into high quality steel wire, galvanized steel plate, stainless steel plate. The general technology used on the blade: hot dip galvanizing – stamping. The blade has the advantages of corrosion resistance, aging resistance, good weather resistance, easy installation, low price and so on. The use of blade rope: Blade rope has been widely used in military sites, prisons, government, banks, residences, private homes, villas, doors and Windows, roads, railway fences and border lines, etc., to ensure safety. Most prisons basically use razor blades.
Post time: 10-06-22
The key and important parts with tensile strength greater than 1034Mpa should be relieved of stress at 200±10℃ for more than 1 hour before plating, and the carburized or surface hardened parts should be relieved of stress at 140±10℃ for more than 5 hours. The cleaning agent used for cleaning shall have no effect on the binding force of the coating and no corrosion on the substrate. Acid activation Acid activation solution should be able to remove corrosion products and oxide film (skin) on the surface of parts without excessive corrosion on the matrix.
Stainless steel is short for rust acid steel, air, steam, water and other weak corrosion medium or stainless steel is called stainless steel; And the chemical corrosion resistance medium (acid, alkali, salt and other chemical etching) corrosion of steel called acid steel.
With the opening of metro in large and medium-sized cities, as well as the vigorous promotion of subway service in network tools, those who have been accustomed to the subway as a daily means of transportation and urban traffic. These citizens, who love the subway, rely on it and enjoy its speed, often like to call themselves the U-pin price. Is widely used in industry, agriculture, farming, construction, transportation and other welded wire mesh is used in the field of high quality low carbon wire line of welding and become, then after cold, hot dip plating, PVC plastic coated surface passivation, such as plasticizing processing, production of metal mesh with smooth surface, uniform mesh, solder joint is firm, stability, corrosion resistance, good corrosion resistance characteristics.
Two is to pay attention to the storage and use of galvanized wire products, according to the actual environmental standards to choose different specifications of galvanized wire products;
Large hexagonal net called stone cage net, mainly used for mountain preparedness protection, hydraulic construction, etc. Small wire hexagonal net is used as a good material for culture, will twist the hexagonal net in the welding of the iron frame on the hexagonal net welding into chicken cage, pigeon cage, rabbit cage and other cage, hexagonal net is an excellent material for culture with net.