Expansion anchors are designed to expand when the resin cures, providing a strong hold in soft or friable substrates such as concrete or masonry. Plug anchors, on the other hand, rely on friction to hold the blockwork in place and are suitable for harder substrates such as brick or stone. Screw anchors are similar to plug anchors but have a threaded shank that allows them to be tightened to provide a more secure hold Screw anchors are similar to plug anchors but have a threaded shank that allows them to be tightened to provide a more secure hold
One of the key features of chemical stud bolts is their ability to maintain their strength and integrity at high temperatures
Galvanized iron wire will rust, mainly and the thickness of galvanized layer and the use of the environment, galvanized iron wire is also divided into cold galvanized iron wire and hot galvanized iron wire, in general, hot galvanized iron wire galvanized layer is thicker, rust prevention time is longer, generally can be 7 or 8 years without rust. If the galvanized layer is damaged, or long-term use in a humid environment, it will accelerate the rust time of galvanized iron wire.
- 2. Select according to features
- And the air humidity is large, continuous rainy weather, or the environment with large acidity in the air is easy to rust. 304 stainless steel material, if the surrounding environment is too poor will rust.
Specific requirements for the safety of galvanized wire production: clean up all tools and other objects that hinder production in the galvanized wire production environment. Operators in the pickling process, pay attention to the action should be careful, not careless, into the pickling tank must be handled lightly, to prevent splashing on the body. When adding acid, the acid must be slowly poured into the water. It is forbidden to pour the water into the acid, so as to prevent the acid from splashing out and hurting people. Do not hurt yourself or others.
- Galvanized iron wire is divided into hot galvanized wire and cold galvanized wire, using low carbon steel wire processing, after drawing molding, pickling rust removal, high temperature annealing, hot galvanized, cooling and other processes. It has good toughness and elasticity, and the amount of zinc can reach 300 grams/square meter. It has the characteristics of thick galvanized layer and strong corrosion resistance. Galvanized iron wire can be cut off in the construction of the tie wire, the length of 20cm, 30cm and 40cm, can be cut off according to requirements.
- Hot galvanized products in chemical equipment, petroleum processing, ocean exploration, metal structure, power transmission, shipbuilding and other industries have a wide range of applications, in the agricultural field such as pesticide irrigation, greenhouse and construction such as water and gas transmission, wire casing, scaffolding, bridge, highway guardrail and other aspects, in recent years has been widely used.
Post time: 17-03-23Two, the production process is different
Cattle fence network in outdoor use for a long time will inevitably appear rusty corrosion, this time the use of cattle fence network life depends on the maintenance of the product is not in place, we all know that cattle fence network if a long time exposed to the harsh environment, the service life will be greatly reduced. How long does a normal cattle net last?
Post time: 28-09-22Welding mesh is also known as external wall insulation wire mesh, galvanized wire mesh, galvanized welding mesh, wire mesh, row welding mesh, touch welding mesh, construction mesh, external wall insulation mesh, decorative mesh, barbed wire, square eye mesh, screen mesh, anti-crack mesh. Stainless steel welding net, is made of high quality stainless steel wire row welding, more acid resistance, alkali resistance, solid welding, beautiful, wide use and so on.
- C, coating uniformity: galvanized layer is basically uniform with copper sulfate solution test etched five times without exposing iron.
The wire used for wire mesh is made of low carbon steel wire, medium carbon steel wire, high carbon steel wire, stainless steel wire and other materials woven or welded. Production technology: general braid, embossed braid and spot welding type. If the steel wire as the material, after the equipment processing into a network, so called wire mesh.
- 3. For temporary protection, breeding chickens and ducklings, etc., it is recommended that you choose products with a wire diameter of 2mm.
- 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.
- If the requirements are higher, and it is humid place, it is recommended to use hot-dip galvanized barbed rope, although the price is higher, but the service life is longer, generally speaking, it is more cost-effective.
The application of electric welding mesh is more and more widely, the technology is gradually mature, electroplating rust prevention, plastic coated treatment, used for breeding, grille, plus the frame to make a fence, etc.
Due to the implementation of the grassland contract operation obligation system, herdsmen have a high capacity to strengthen and raise their stainless steel barbed rope fence net in grassland pastoral areas, forming the phenomenon of high density and high height of stainless steel barbed rope fence net in grassland pastoral areas, which is destructive and even destructive to the survival of wild animals.
Stainless steel barbed wire in the way of corrosion is not too, because the surface is not treated but relies on its own raw materials for corrosion resistance, so there will be no chemical reaction.
The main factors causing metal rust: relative humidity of the atmosphere at the same temperature, the percentage of water vapor content and water vapor saturation content in the atmosphere, known as relative humidity. Under certain relative humidity, the corrosion rate of metal antirust oil is very small, but higher than the relative humidity, the corrosion rate increases suddenly. This relative humidity is called the critical humidity. When the humidity in the atmosphere is higher than the critical humidity, the metal surface will appear water film or water droplets, if the atmosphere contains harmful impurities, dissolved in the water film, water droplets, electrolytes and aggravate corrosion.
This method is generally the use of hot rolled laminated plate as raw material, the annealed steel plate is first sent to the pickling workshop, with sulfuric acid or hydrochloric acid to remove the surface of the steel sheet oxygen hot galvanizing method. After pickling, the steel plate immediately enters the tank to soak and wait for galvanized, which can prevent the reoxidation of the steel plate. After pickling, water cleaning, squeeze dry, drying, into the zinc pot, the temperature has been maintained at 445-465℃.
- In summary, as a commonly used anticorrosive material, electrogalvanized wire has good corrosion resistance. Its corrosion resistance mainly depends on the thickness, uniformity and structure of zinc layer, substrate material and environmental conditions and other factors. Through reasonable electroplating process and material selection, the corrosion resistance of electrogalvanized wire can be improved and its service life can be extended.
- The two spines are 7 to 8 circles in the middle, while the ordinary spines are only 3 and a half circles, showing neat and beautiful. Now domestic customers see the positive and negative twisting rope, the impression is that the silk is too thin, can not play a protective role, in fact, it is not.
Open pit coal mine due to poor air quality, a variety of harmful heavy metals are also more, so the corrosion strength of barbed rope products is particularly large, when using galvanized barbed rope must choose hot plating or plastic coated galvanized barbed rope, although the price is slightly higher, but in the long term development is more appropriate. Besides, when the barbed rope is installed near the coal mine, the pile foundation should be fixed to prevent the barbed rope from falling down due to soil erosion, thus losing the protective effect.
Galvanized wire drawing is more common in our life, galvanized wire drawing refers to the production of galvanized iron wire after a series of processes such as shell stripping. The production process of galvanized wire drawing is more complex, and a series of problems may occur if there is a slight mistake. When the wire factory is engaged in the production of galvanized wire drawing, it is necessary to remove all the tools and piles that hinder activities on the work site and equipment.
- The installation of guardrail should also follow certain steps, first of all, after the guardrail is transported, according to the length of the guardrail, determine the distance between the column, if the installation of the guardrail field is soft ground, then you can first dig out a 40*40*50cm embedded machine base. If it is a concrete floor, as long as the expansion bolt directly fixed.