BadrHunaynRectangular pipe for engineeringWhat are the skills in winter

Performance index analysis of square tube - strength refers to the performance of metal materials under static load. Since the action modes of load include tension, compression bending and shear, the strength is also divided into tensile strength, compressive strength, tensile strength is used as the basic strength indicator.

Square tube industry plays an important role in production and construction. Square pipe is a steel pipe made of a whole piece of metal without joints on the surface, which is called square pipe.

BadrHunayn.Square tube is made of different materials. It needs qualified inspection by relevant staff before leaving the factory. Square tube has a wide range of uses. Its main field is not only the construction industry, but also can be seen everywhere in our daily life. The service life of square tubes is mainly affected by surface treatment. I will explain the specific operations of surface treatment of square tubes.

It is a kind of cleaning for the surface of square pipe. Shot blasting is often used to clean the casting surface or strengthen the surface of square pipe.

.The detailed steps for cutting square tubes are as follows: what is used for cutting square tubes? Seamless square tubes can only be processed successfully after certain steps in processing and engineering. The first step that must be experienced in processing is to cut seamless square tubes. There are various cutting methods for seamless square tubes. Today, I'd like to introduce a method of cutting seamless square tubes with slices, or they don't cut well; B choose sharp seeds, slightly larger ones, and small needles. Sometimes large potatoes are not long enough; C. select flat, sink and vegetable board. When it is uneven, it will be cut continuously; When the texture is light cut, the die-cutting board will follow.

In the test, place the sample between two parallel plates and press it evenly to the flattening distance h specified in relevant technical conditions with a press or testing machine at a speed of no more than 60mmin.

After aluminum deoxidation in molten steel, calcium treatment can achieve better effect on the denaturation of Al203.

The surface hardening treatment of qq355b square tube is generally isothermal quenching, that is, heat treatment technology. After isothermal quenching, qq355b square tube will obtain more and better properties, and make qq355b square tube be applied in more fields.

Ferroalloy is an alloy composed of iron and silicon, manganese, chromium, titanium and other elements. Ferroalloy is the raw material for steelmaking. It is used as deoxidizer and alloy element additive for steel in square tube steelmaking.

The disadvantage of solid bending is that it has tensile thinning effect. The actual bending will produce tension at the bending point, and the tensile effect will shorten the longitudinal length of the bending line; The metal at the real bend will become thinner due to stretching.

target.Electrochemical polishing: long specular gloss, stable process, less pollution and good durability. Suitable for mass production, it is mainly applied to high-grade products, imported products and public service products. Its processing technology is stable and the operation is simple.

Reach or even exceed the level of resistance welding cold formed square pipe. The size of R angle is generally between 2-3 times of the wall thickness. R angle square pipe of the size required by customers can also be produced according to customers' needs; Square pipe is a kind of long steel with hollow section and no joints around. It is a square pipe formed by four sides of seamless pipe mold. Square pipe has hollow section, professional square pipe, square rectangular pipe seamless square pipe,BadrHunaynSquare tube right angle, galvanized square pipe, galvanized square pipe, strict inspection and quality assurance. The preferential activity is in progress. Welcome to consult. A large number of pipes are used for conveying fluid. They are mainly used in conveying, hydraulic support and mechanical structure, Medium and low pressure, high pressure boiler tubes heat exchange tubes, oil and other industries. It is stronger than welded and will not crack.

Yield point of square tube (& sigma; s): the stress of metal material with yield phenomenon when the sample can continue to elongate without increasing (maintaining constant) the force during the tensile process gas, which is called the yield point. If the stress decreases, the upper and lower yield points shall be distinguished. The unit of yield point is nmm2 (MPA).

In short, the square tube production process includes these processes: tube blank & mdash& mdash; Cut off & mdash& mdash; Heating & mdash& mdash; Perforation & mdash& mdash; Pipe rolling & mdash& mdash; Sizing (reducing) & mdash& mdash; Straightening & mdash& mdash; Cut head and tail & mdash& mdash; Inspection & mdash& mdash; Packaging & mdash& mdash; Warehousing.

Word of mouth recommendation.Mechanical polishing: after processing, the parts have good levelness, short gloss,BadrHunaynGalvanized steel pipe, dull and rusty. Suitable for processing simple parts, medium and small products.

B. converter steel: (a) acid converter steel; (b) Basic converter steel. Or (a) bottom blown converter steel; (b) Side blown converter steel; (c) Top blown converter steel.

Surface adhesion resistance is an important feature of square tubes. At present, square tubes are mostly used for transportation, so the adhesion resistance makes square tubes not stick during transportation.

BadrHunayn.Hardness test is to use a hard indenter to slowly the sample surface according to the specified conditions, and then test the indentation depth or size, so as to determine the hardness of the material. Hardness test is simple, rapid and easy to implement in material mechanical property test. Hardness test is non-linear, which is of great practical significance.

Now in many construction projects, we can see the shadow of q355b square tube, because q355b square tube is quite hard in hardness, and the performance and quality of deformation, stamping, cutting and other processing are based on hardness, which is also the guarantee of mechanical properties. Based on the above, it is very important to test the hardness of q355b square tube.

Square tube is a kind of square tube, which is rolled by strip steel after process treatment. Many kinds of materials can form a square tube body. It is used for what purpose and where. Most square tubes are steel tubes, mostly structural square tubes,BadrHunaynGalvanized square tubes are sold there, decorative square tubes and building square tubes. Generally, the strip steel is unpacked, leveled, crimped and welded to form a circular tube, which is rolled into a square tube and then cut to the required length. Usually 50 pieces per bag.