Three kinds of welding materials appropriate technology can be satisfied with the weld metal, but because of subtle differences in the design concept and composition, making the process performance have their own characteristics. MTS616 to take the steel core of the alloying elements transition, while the remaining two kinds of alloying elements, the drug skin transition, due to the melting point of W particles in the drug skin up to 3410 ° C, the welding energy is too small, it is possible the phenomenon of mixed metal W . Therefore, two types of electrode process should be different for the latter type of  Welding Electrode , not just one-sided emphasis on the small line energy to improve the weld impact energy. P91 steel weld metal inclusions appear similar reasons, less, because the melting point of Mo is nearly 800 ° C lower than w.

Control measures:

1) improve the processing technology, the use of CNC lathe machining, hole machining accuracy of less than 0.04mm, concentricity of 0.05mm or less.

2) switch to high speed steel rolls, in order to ensure processing quality and efficiency, the use of PCBN (CBN) tool slotting, with Flying milling finished transverse ribs.

3) for the roll point moving mill, with the same specifications of the Welding Electrode or the φ6.5mm rod measured on both sides of the roll gap, the deviation control in 0.1mm.

4) the use of wood on both sides of the crossed material, observations rolling left traces whether symmetrical or out of the ears, asymmetric or ears, and make adjustments immediately, are rolling line.

Quality inspection is divided into two, a check for the self-test, level check for the final inspection. Self-test includes: preparatory work; before the Welding Electrode baking; posts permit inspection of welding personnel, welding procedures execution; one by visual inspection of welded joints. The self-test member must be a welder served by a narrow gap through specialized training in technical excellence and strong sense of responsibility.

Final inspection by the professional quality inspection departments, carried out are: the welded joint on-site visual inspection one by one, randomly selected specimens in the field, mechanical performance test conducted by the laboratory, the specimen is generally extracted three for tensile test. The need may also be taken of three specimens for cold bending test.

Extracted from the installed steel mesh specimen difficult, you can create mock trial, the location of the specimen and welding procedure specifications must be consistent and on-site construction conditions. Inspection with reference to hydraulic concrete construction specifications (SDJ207-82).

In order to ensure the quality of the inspection sub-standard connectors, such as: undercut, incomplete penetration, not welded full welding or plus tie bar welded reinforcement processing.

Recently, Tangshan Iron and Steel TYH-1 flux cored wire with a strip cold rolling mill successful trial, the first production of 260 tons 0.8mm, 1.0mm specifications of the product, its chemical composition, physical properties, surface quality, product size all meet the standards requirements, all products have been distributed to users. As the special requirements of users of steel, Tangshan Iron and Steel in the market to increase an efficiency point. TYH-1 flux cored wire with a successful trial of the strip fills the blank of Hebei Province, flux cored wire strip.

TYH-1 flux cored wire Strip steel is mainly used in automatic Welding Electrode  cored electrode surface, demanding a variety of performance indicators. The successful development and market access as soon as possible, technology centers, give full play to the company s existing technology and equipment advantages of expert advice at the same time held a number of professional meetings, organizational and technical personnel a number of occasions to Beijing, Tianjin and other places so that the steel market research established market position and development plans, through consultation and communication with the user, according to the actual needs of users.

A, laser engraving machine is the most common laser engraving equipment, laser engraving effect has a uniform color, a clear pattern, durability and other characteristics, is commonly used in wood carving, mobile phone shell carving. Different material has its own characteristics and these characteristics tend to use different laser engraving method.
Second, different materials for the sculpture, we must first study the properties of these materials, to select a different power of laser engraving machine. For wood, first, wood is the most commonly used materials are generally easy carving, so long as the good wood hard to debug can. Color plates is necessary with the sentence of its material to choose, the color plates there is a more than two color composite structure consisting of an engineering plastic, is usually used in processing instructions signs and badges, if the surface color is very thin , it is necessary to acquire a small piece of debugging. Plywood sculpture key depends on the kind made of wood. There will be a wood engraving after burning had the feeling, the depth of its color mainly depends on the laser power and engraving speed. Dongguan laser marking machine

, Laser engraving machine is often based on the needs of different users, in metal, wood, glass and other products for rugged carved scriptures, pictures, digital graphics, the reason of this is also a wide range of laser engraving equipment applications.

Laser cutting machine equipment more and more mature as a new tool applied to a variety of industries, including laser cutting machine, laser engraving machine, laser marking machine, laser welding machine. The laser cutting in the end is how the use of laser cutting is good or bad, how to distinguish it? First, the laser energy in the form of light is concentrated into a beam of high-density beam is passed to the work surface, generates enough heat, so that the material melting, combined with the high-pressure gas of the beam coaxial directly to remove the molten metal, so as to achieve the goal of cutting This shows that the laser cutting machine tools machining is essentially different. It is the use of the laser beam emitted from the laser generator, and focused into the optical system, high power density laser beam conditions, the laser heat is absorbed by the workpiece material, workpiece temperature rose sharply to reach the boiling point, the material begins to vaporize and form holes , accompanied by high-pressure air flow, with the beam and the workpiece relative position of the mobile, the final material to form the kerf. The kerf of the process parameters (cutting speed, laser power, gas pressure, etc.) and the trajectory by the CNC control slag slotted at a certain pressure of the auxiliary gas blowing.

Laser cutting machine laser beam parameters, the machine performance and accuracy of the numerical control system have a direct impact on the efficiency and quality of laser cutting. Especially for the cutting of high precision or the thickness of the larger parts, we must grasp and address the following key technologies: a focus position control technology: One of the advantages of laser cutting beam of high energy density, the general 10W/cm2. As the energy density is proportional to the 4/πd2 the focus spot diameter as small as possible in order to produce a narrow kerf; deep is proportional to the focus spot diameter and the lens focus. Focusing lens depth of focus of the smaller focus spot diameter is smaller. But cut a splash, the lens away from the workpiece too close to the lens easy to damage, so 〃 widely used in industrial applications of the general high-power CO2 laser cutting machine 5 \"to 7.5\" (127 ~ 190mm) focal length of the actual focus spot diameter of 0.1 to 0.4 mm. for high-quality cutting, the effective focal deep and the lens diameter and the material being cut. such as cutting carbon steel 5 the 〃\\ s lens, depth of focus is within +2% of the focal length, that is about 5mm, so control focus relative to the position of the cut surface is very important to take into consideration the cutting quality, cutting speed and other factors, in principle, 6mm of metal materials, the focus is on the surface; 6mm carbon steel, the focus is on the surface; 6mm stainless steel, the focus beneath the surface of specific size determined by experiment.

High precision: for precision parts cutting and a variety of processes word painting fine cutting. 2, speed: more than 100 times the wire cutting. 3, the heat affected zone is small, easily deformed. The kerf smooth, beautiful, without the order of processing. Cost-effective: the price is only 1/3 of CO2 laser cutting machine of similar performance, and equivalent efficacy CNC punch press 2/5. 5, very low-cost: only similar CO2 laser laser cutting machine 1/8 to 1/10, the hourly cost is only about 18 yuan per hour cost of CO2 laser cutting machine for about 150 ~ 180 yuan. 6, the follow-up maintenance costs low: only similar CO2 laser cutting machine 1/10 ~ 1/15, and equivalent efficacy of CNC punch press 1/3 to 1/4. 7, stable performance, to ensure continued production. Solid YAG laser is the laser field, the most stable one of the most mature product. 8, and CNC punch comparison, the YAG laser cutting machine has the following advantages: (1) to complete the processing of a variety of complex structure, as long as we can draw any image on the computer, the machine can complete processing. (2) does not require open mode, the computer will map to make the product immediately, that is able to quickly develop new products, but also cost savings. (3) of YAG cutting machine with automatic tracking system, that can be completed plane cutting, but also to complete a variety of uneven surfaces cutting. (4) of the complex processes to CNC punch press is difficult to complete, laser cutting can be done. (5) surface is very smooth, high product quality, CNC punching is difficult to achieve. (6) The molding of the box (0.5 m thick) the need to increase the vertical slots and processing, CNC punch press can not handle YAG CNC metal laser cutting machine to solve.

 cutting machine is so widely used, is simply the object with a laser cut slightly! Materials that can be cut, laser cutting machine can cut acrylic, wood, fabric, leather, metal, etc., depending on the size of the power format can be used in different
Laser cutting machine – cutting samples (6) industry. The cutting of the fabric can be used in clothing, carpets, industrial fabrics, acrylic cutting machine can be used in the production of acrylic crafts, wood cutting can be used as a model-making, metal cutting can replace the original cutting to do all kinds of metal products. Procurement methods of laser cutting machine in 2000, domestic production of apparel laser processing based enterprise is not too much. But now, the laser equipment manufacturing enterprises have sprung up to develop the current size of the domestic enterprise has reached dozens of as much. The application of laser technology in the apparel industry has played a role in fueling China\\ s garment processing and apparel brand competitiveness enhancement. But the face of so many enterprises, garment enterprises is how the correct choice of processing equipment, so that enterprises can get the greatest return with less investment? Illustrated from the following aspects need to pay attention to buy laser equipment, hoping to The majority of the apparel industry friends a little help.

The main products are high-speed laser cutting machine, automatic laser cutting machine, laser cutting, double-headed mutual shift of laser cutting machine, automatic laser hundred cutting machine and laser marking machine. – Kind of equipment plus: positive format is different. The above equipment in addition to laser marking machine, fabric cut cut piece of clothing proofing, trademarks, embroidered patch cutting, leather carving drill, denim, stencil printing, embroidery, and other process operations. Automatic laser cutting machine, its platform movement, and together with the feeding device to achieve the purpose of automatic processing. Laser cutting is mainly used in the processing of large format; mutual shift double-headed laser cutting machine In addition to adhering to the characteristics of the laser cutting of two laser head – from the movement operation can also be separated from operations; automatic trademark cutting machine automatic identification and modeling, such as trademarks, embroidery pattern, automatic search, but also cutting collection and automatic identification of the graphics with standard graphics features.