When the end span plate is connected with the concrete beam for structural reinforcement the length of the surface mesh reinforcement extending into the beam shall not be less than d. When the beam width is small， the extended reinforcement shall be bent . When the perimeter of the floor is poured integrally with the concrete beam or wall， the length of the surface mesh reinforcement extending into the beam shall not be less than the anchorage length of the small reinforcement required by the standard (without transverse reinforcement)， when the beam width is small， the extended reinforcement shall be bent.
2The correct and reasonable use of galvanized pipe can play a better role. The product can be widely used in the market because of its obvious performance advantages. Both strength and toughness are worth our choice. Lets see what the specific uses are and what the acceptance standards are?
yShangri la townThe crack mainly occurs at -mm from the edge of the alloy pipe. The shape is several parallel vertical cracks of different sizes. The regularity is that the thicker the specification and model of the alloy pipe is The wider the width， easy processing，Products Show etc;
NKurmuk The end span plate is connected with the load-bearing wall. The length of the surface mesh extending into the grid support shall not be less than mm，Aruba3087 fabricant de tubes sans soudurePhénomène lors de l'utilisation and a transverse reinforcement shall be provided at the end of the mesh or the extended reinforcement shall be bent.
JnGalvanized pipe refers to the shape and high frequency of hollow square steel pipe welded by the back of the steel pipe during the hot rolling or cold rolling of galvanized steel plate or cold bending of galvanized steel plate， or before the galvanization of cold hollow pipe. Galvanized. Galvanized square pipe can be divided into hot galvanized pipe and cold galvanized pipe from the production process. This is because the two galvanized pipes are different， which also leads to many different physical and chemical properties.
The surface of hot-dip galvanized parts is bright and beautiful.
Defect detection of seamless pipe
rWhat should we pay attention to in the production of alloy pipe
F Because the zinc coating has excellent ductility， it can be formed by cold stamping， rolling bending and so on without damaging the coating.
Udiscount Whether the mesh size and wire diameter of electric welding mesh meet the standards
zXSeamless pipe is a long steel with hollow section and no joints around it. There are more than production plants under more than companies in more than countries producing seamless pipes，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd including more than plants under more than companies in countries.
After chromate passivation， colorful and military green， which is beautiful and generous and has certain decoration;
Galvanized pipe: the hot-dip galvanized pipe base plate and molten electroplating solution are combined physically and chemically to form a dense corrosion-resistant structure of zinc iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe substrate. Therefore， it has strong corrosion resistance.
Word of mouth recommendationfBlanking shall be carried out according to the design and site， and then the groove shall be made with a grinder with a groove angle of ° ~ °. Fix the processed pipe on the support， and the gap between the two pipes is mm ~ mm，Products Show and then weld.
APlan scheme : high carbon steel with carbon content exceeding .% and alloy pipe with chromium content not less than %
nShangri la townPipelines of various specifications and models are complete.
jRThe third is the welding machine， which must ensure reliable performance and meet the process needs; The welding machine must have qualified ammeter and voltmeter to ensure the correct implementation of welding process. The welding cable shall not be too long， and the welding parameters shall be adjusted when it is too long.
On the other hand， when the steel structure changes during heat treatment，Aruba3087 fabricant de tubes sans soudurePhénomène lors de l'utilisation that is， austenite transforms into martensite， the increase of specific volume will be accompanied by the expansion of workpiece volume， and each part of workpiece will undergo phase transformation successively，Products Show resulting in inconsistent volume growth and structural stress. Due to the change of tissue stress， the tensile stress on the surface and the compressive stress in the heart are just opposite to the thermal stress. The magnitude of microstructure stress is related to the cooling rate， shape and chemical composition of martensitic transformation zone materials.