hex head timber screws

Galvanized wire is coated with a layer of stable zinc on the outside of the wire, and the zinc layer is used to protect the wire and make the service life of the wire longer. In the production of galvanized wire, the wire should be pickled. Pickling is to use some acid mist or acid liquid to wash away some oxides on the surface of iron, that is, rust, and some other corrosion, to achieve the purpose of cleaning iron, so that zinc will fall off when galvanized.
Galvanized wire to galvanized uniform, a body is now its cross section, the second is the longitudinal uniformity. In the actual operation process, such as the jitter of steel wire, the surface of the pot scum and other reasons will cause galvanized wire surface galvanized layer accumulation, should try to solve the problem.
Post time: 12-07-22
No matter how big they are, dogs seem to love touching noses with people and other animals. In fact, nose touching is a form of social interaction for dogs, much like shaking hands and hugging humans. But dogs don’t rub their noses with every person or animal. They choose who to rub their noses with. If they don’t like you or don’t know you at all, they won’t touch your nose. However, adult dogs will touch the nose of almost every puppy. They will not only touch the puppy’s nose, but also smell the puppy.
Post time: 07-06-22
As we all know, stainless steel barbed rope is installed in the outdoor, after a long time of exposure to the sun is easy to rust, once rust service life will end. So want to extend the service life of stainless steel barbed rope must prevent rust. In general, in order to prevent rust, we will choose to spray stainless steel barbed rope.
In the purchase of barbed rope should be customer demand, so the amount of galvanized is different, then the two kinds of barbed rope and what is the difference, some customers need high zinc blade barbed rope, but high zinc blade barbed rope price to ordinary galvanized barbed rope price is more than 1000 yuan per ton, the two kinds of barbed rope products, the former is used in many aspects, such as the military, the government’s barbed rope, The latter is more for civilian use.
Galvanized hexagonal mesh uses: building wall fixed, heat preservation, heat insulation; Power plant piping, boiler heating; Anti-freezing, residential protection, landscaping protection; Raise chicken and duck, isolate chicken and duck house, play the role of protecting poultry; Protect and support seawalls, hillsides, roads and Bridges and other waterworks.
The error of construction welding net diameter should be controlled at 0.02 mm. For example, we buy wire diameter of 89 wire welding net, with a micrometer to measure the diameter, the diameter of the allowable range is 87 -91 wire. In this range is qualified welding net. Because the accuracy has been compared, but no one can control it so well in the production process. The welding net can be accurate to 0.01 mm, so the error is allowed.
The production process of large rolls of galvanized wire is a level of drawing, through the mold into a slightly smaller diameter than the original. And so on down to the desired length. One pull is not desirable, must be numbered, from coarse to fine is dependent on metal ductility. If it changes too much it just breaks. After drawing to a certain diameter, galvanized, so that the finished product.
Different supports are used for different installation environments. In the past, the blade barbed wire was not easy to fix, and the installation environment was often steep. Therefore, special tools must be used to fix the blade barbed wire to prevent it from being improperly installed.
Post time: 19-05-23
Zinc is a silver-white metal, brittle at room temperature, soluble in acid can also be soluble in alkali, known as amphoteric metal. Pure zinc in dry air is more stable, in humid air or containing carbon dioxide and oxygen water is small, the surface will generate a layer of basic zinc carbonate based thin film layer, it can delay the corrosion rate of zinc layer. The corrosion resistance of zinc coating in aqueous solution of acid, alkali and sodium chloride is stronger.
Post time: 13-06-22
Pressure lock steel grid plate is at each intersection of bearing flat steel and horizontal bar, the horizontal bar is pressed into bearing flat steel or pre-slotted bearing flat steel through the pressure, the fixed steel grid plate, called pressure lock steel grid plate. The cross bar of the pressure lock steel grid plate is usually flat steel.
We must have a certain understanding of the hexagonal network, we are the beautiful appearance of the hexagonal network, hexagonal network is not only very beautiful appearance, in fact, the practical value of survival is very high. To introduce the relevant information should be very clearly know the highway guardrail net, hexagonal wire netting in all kinds of fence netting, in the value of the high-speed on the road more MaoJian, it not only be used in all kinds of road, in a sports ball games venue and try our best to take care of landslides, also has reached very matter effectiveness.
Greenhouse steel pipe is mainly made of greenhouse composite materials made of pull rod, pressure rod, column, and arch rod to cover the plastic film in a greenhouse. Wire factory introduces its this shape is circular plastic greenhouse, this greenhouse covers a large area, the effect of heat absorption is also very good, convenient to build, the cost of building a is also very low. The raw material source of greenhouse steel pipe is very rich and extensive, and the application effect is good.
1. Electroplating process control
(6) Save transportation costs. It can be reduced into small rolls, and involved in moisture-proof paper packaging, occupying little space.
One end of the wire must be clearly marked and the other end left on the outer layer for easy connection by other wires. Ask the factory to provide the corresponding quality inspection report before packing. Cold drawing is a kind of material often used in our life, especially in the construction of buildings. Cold wire drawing is used more in building materials, cold wire drawing testing standards are also different.
Now it is more used in the binding of the construction industry. Compared with ordinary iron wire, it is softer and has better luster. Use in daily life does not need to carry out maintenance and maintenance, save a lot of time, but also save the cost of maintenance and maintenance. Annealed wire has good stability, good corrosion resistance, greatly prolonging the service life. More kinds, can be selected according to different uses, making annealing wire device is simple, improve the utilization rate of the device. The material properties of annealed wire can meet different processing requirements.
Production technology: Through the excellent low carbon steel rod drawing forming, pickling rust removal, high temperature annealing, hot dip galvanizing. Cooling and other 5 operation processes refined. Galvanized wire characteristics: good resistance and elasticity, strong corrosion resistance.
3, galvanized wire galvanized process
Atmospheric relative humidity At the same temperature, the percentage of atmospheric water vapor content and its vapor saturation content is called relative humidity. Below a certain relative humidity, the corrosion rate of metal antirust oil is small, while above this relative humidity, the corrosion rate increases sharply.
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.
The characteristics of hexagonal net: solid structure, flat surface, with good corrosion resistance, oxidation resistance and other characteristics: used for raising chickens, ducks, geese, rabbits and zoo fences, mechanical equipment protection, highway guardrail, sports places Seine, road green belt protection net. The screen in the production of box shaped container, with stone filled with cages, can be used to protect and support seawall, hillside, road and bridge, reservoir and other civil engineering, is a good material for flood control and flood resistance, namely (stone cage net, stone cage cage).
The lighting surface of each type of shed is designed to be curved, improving the Angle of the light surface, because the lighting surface is curved, no dust accumulation, good light transmittance, high temperature in the shed, after measurement, the average temperature in the shed is 3℃ higher than the traditional bamboo pole cement column shed, the yield is increased by 15~20%, and the harvest date is advanced. The formula is scientific, the surface does not absorb moisture, do not return halogen through modification technology and scientific production process, solve the greenhouse frame rod is easy to absorb moisture return halogen, poor water resistance and easy to change the shortcomings, so that the greenhouse steel pipe in the high temperature and high humidity environment, few drops, frost phenomenon, and reduce pests and diseases.
If the coating roughness is not caused by the above reasons, it may be caused by impurities in the plating solution. Can take a small amount of electroplating solution, after filtration test, then take a small amount of electroplating solution, after zinc powder treatment test, check the problem is caused by solid particles or copper, lead and other foreign metal impurities. Test them one by one and it’s not hard to find the cause of the problem. Galvanized iron wire coating foaming, binding force is not good.
1. After getting the bird cage, do not rush to use it. Clean the cage with a clean cloth or rubber. Then use fine yarn paper (do not use coarse sandpaper randomly), gently polish some parts that need to be polished again to improve the surface finish and trace, and pay attention to not damage the original bamboo green. After careful observation, use a razor blade to carefully clean the individual areas with small burrs.
2. Zinc layer uniformity: zinc layer uniformity also has an important impact on corrosion resistance. If the zinc layer is not uniform, there are local defects or insufficient thickness areas, it is easy to form corrosion points, resulting in the destruction of the entire zinc layer.