Yunnan to build giant Trading Co. Sales Hotline: 13678715087 Contact: Chen Online QQ: 38756527 Tel: 0871-63923052 Company website: www.yngantao.com Acoustic Pipe Kunming, Kunming Acoustic Pipe prices, Kunming acoustic tube market, Acoustic Pipe factory Kunming, Kunming acoustic tube market price, Kunming Acoustic Pipe factory price, Kunming acoustic pipe sales price, giant Yunnan Co., Ltd. to build acoustic tube professional production and sales, affordable, quality, complete specifications, Welcome to the new and old customers to purchase products reservation, would like to know more about the acoustic tube information, call Yunnan Co., Ltd. to build a giant. From the beginning of the year to date, the domestic steel market continues weak down the main, during only 3 months late after wave rebounded slightly, but the overall weak, while its flat steel prices this year fell more than longs. Early in the article and the author of "pattern is hard to change the weak long strong board will continue," also introduced from export demand, capacity expansion and so on through the plate weak long strong situation. Not surprisingly, the recent hot rolled coil price is lower than longs. Here's to the music from the recent hot rolled, for example, a simple analysis of June HRC prices will rebound to turn the tide ushered in a wave of recent price movements slowed down:? From a price perspective, since January this year, the music from the heat Volume prices from 3200 yuan / ton fell to the current 2,470 yuan / ton, down 22.81%; Shanghai HRC prices from 3050 yuan / ton fell to the current level of 2,380 yuan / ton, which fell 21.97%, comparatively speaking, as two largest domestic sheet market, music from hot rolled drop area is larger than Shanghai; In addition, we know that most of the music from the local market more resources in the field, from the beginning of this year, the music from the Tianjin area spreads fell from 300 yuan 60-80 yuan, Tianjin and Hebei region generally transported to music from the region 100-120 yuan / ton of freight, it follows the current music from the price of hot rolled region is already at a relatively bottom. Second, go inventory speed: from early 2014 until now, Shanghai HRC inventories are basically music from the hot coil is higher than the overall inventory. 2014 Houle from HRC inventories rise, peaking at 850,000 tons. In mid-2015 after the HRC inventory in Lecong total about 690,000 tons, compared to last year by 10 tons inventory, mainly due to start in 2014, HRC prices have been walk downward path, although a few middle wave small rebound, but conceal the trend. Prices down, businesses are more pessimistic view on the outlook, the will is not very strong orders, so even if there is the Spring Festival holiday period, the inventory is still not high, however, due to the recent prices down, to hot rolled stock speed significantly higher than last year to speed up, Although the demand is relatively poor year, but cheap so stock further digestion. Third, after clearing steel resources accounting for an increase: from the saddle, this, the first and so monthly pricing agreements significantly reduce the proportion of resources in 2014, part of the resources poured into the North China, South China, such as Guangdong Yan steel market average running about in about 80,000 tons, almost equal to Liu Gang. Further north sunshine after steel mills, iron, bearing steel, through steel also increased the proportion of settlement resources. For South China region, in addition to Liu Gang, the rest are mostly foreign resources, leading steel position gradually fade, the ex-factory price in terms of high Liu Gang, influence greatly reduced price. Fourth, June music from the market price of hot rolled forecast: 1. demand: nearly a month of continuous rain the weather, so that the already weak market more depressed. In addition, after the steel trading business again whipsaw, music from the monthly consumption of hot rolled coil region has been reduced by about 25%. In Guangdong Province the latest manufacturing purchasing managers index, key enterprises in April PMI was 51.1, 0.1 percentage point rise from the previous month, rebounded for two consecutive months. NOTE Currently downstream manufacturing sector is gradually restored. Demand is expected to end in June will be improved. 2, price: the current music from the region of hot rolled long products prices have been lower than the price of the same region, and both have cost 200 yuan spread below normal levels ,, and raw material prices have recently rebounded sharply, costs have support. From the current situation, the music from the relatively low thermal paper prices have dropped, the latter is expected out of the downturn. 3. mentality: Music from the HRC this year is already down nearly five months, only a wavelet rebound period, but the lack of upward momentum, and soon stagflation continued to fall. Prices have fallen to 2450 yuan / ton, the market rose eager hope, whether traders or steel, and 4 delayed until the Lunar New Year, continuous rainfall in May, demand continues not released, the market kept falling. In summary, the June music from the demand side of the hot coil market will gradually change for the better, as well as confidence in the market face to strong premise, HRC prices are expected to come out weaknesses, the more likely rebound. Yunnan giant build rich Yunnan Kunming Trade Co., Ltd. is a cooperative bank distribution warehouse registration number: 530111100137575, the registered capital of 5 million yuan, the company headquarters is located in the new business building stingy market 3024 Kunming Economic Development Zone, located in the yard stingy market, Wang Hao steel market, ample stocks of steel, mainly engaged in beam, H-beam, screw steel, galvanized pipe, steel plate, channel, angle, pipe, tube, strand, acoustic tube, stainless steel series. The company has been pursuing "genuine, low prices," Eliminate the sale of fake and shoddy products, do not fool customers, integrity treat customers, truly for customers to consider, advice. Provide a reference, and to the integrity of hospitality, many years to win in the Southwest many customers. Long-term cooperation with China Railway, participated in Kunming, "Cheng was speed," "Hai hydropower", "Gui-Kunming Railway" "Wudongde Station" and so on. For the products are widely used in power plants, bridges, highways, commercial buildings, municipal construction, the construction of Yunnan Province to make some contribution. Sales Hotline: 13678715087 Chen (24 hours patiently look forward with you ......) Acoustic Pipe Description: Acoustic Pipe (sounding pipe) is now an essential bridge-building acoustic test tube using the acoustic tube The quality can be detected a pile of acoustic tube is probe into the interior of the pile when the pile ultrasonic detection. It is pile ultrasonic inspection system an important part of it in the pile embedded manner and arranged in the form of cross-section of the pile, it will directly affect the test results. Therefore, a test is required in the design of the pile should be arranged and embedded standard way acoustic tube into the drawing, the construction should strictly control the quality of embedded, in order to ensure the smooth progress of inspection work. Optional: Acoustic Pipe material choices to sound transmission rate is high, ease of installation and low cost principle. Acoustic pulse from the transmitting transducer issued by coupling water reaches the water acoustic test tube wall interface, and then through the wall to reach the interface acoustic tube wall and concrete through the concrete and then be through another acoustic tube The two interfaces reaches the receiving transducer. Thus, the formation of four acoustic tube interface, sound transmission coefficient at each interface can be calculated as follows: Where: - sound energy transmission coefficient of a screen; - acoustic impedance of the transmission medium across the interface and received between the transducer 4 interface overall sound transmission coefficient category: common pipe steel pipe, corrugated steel pipe, plastic pipe three kinds. Advantages of steel is easy to install, it can be welded welded steel skeleton outside, instead of part of reinforced cross-section, and because steel stiffer. After embedding can substantially maintain its parallel and flatness, many large-diameter steel pipe piles are used as the acoustic tube. But the price of steel is more expensive: steel bellows is a good acoustic tube material, it has a thin wall steel provincial and impermeability, pressure resistance, high strength, flexibility and good features, typically used for prestressing structures post-tensioned reserved channel: make a sound when using the test tube. Can be directly tied on the steel skeleton, joints, bellows can be used a bigger socket. Since the bellows very light, and therefore easy to operate, but the installation should pay attention to its axis to keep straight. Low acoustic impedance of the plastic tube has a large test tube with make a sound acoustically transparent rate, typically used for smaller piles, should be used in a large pile of caution, because a lot of the large diameter concrete piles need perfusion, heat of hydration of cement is not easy to diverge: in view of the thermal expansion coefficient differences between plastic and concrete, plastic pipe due to temperature drop in radial and longitudinal shrinkage after the concrete has set, it is possible to make it with concrete partial disengagement of air or water cracks in the sound path and adding more highly reflective interface, easily lead to miscarriage of justice. Acoustic Pipe diameter, and is usually higher than the radial transducer diameter l0mm to common specifications inner diameter of 50-60mm. Effect of acoustically transparent pipe wall thickness ratio is small, so, in principle, no restrictions on the wall thicknesses, but save steel consumption point of view, as long as the wall can withstand the fresh concrete side pressure, the thinner Vietnam province. Structure: acoustic tube can be directly fixed on the inner side of the reinforcement cage: Fixed mode can be welded or banding should remain substantially parallel between the tubes - if the test results need to assess the strength of the concrete of the measuring point is not parallel It should be controlled below 1 ‰. Steel cage into the pile hole should be to prevent distortion. [1] pipe segment generally installed with steel cage, threaded joints can be counter-sleeve or sleeve welding program interfaces between each segment, shown in Figure 8: If bellows can use a bigger bellows sockets and sleeve ends takeover sealed with tape wrapped around. No matter the kind of joint programs must ensure at higher hydrostatic pressure slurry does not leak, the interface wall should be kept flat, should not have welding slag, burrs and other projections, so as not to hinder the probe to move freely, the bottom of the acoustic tube also It should be sealed after installation should be catchy with cork block, in order to avoid falling into foreign body poured concrete, resulting in clogged pores. Use: Other Uses Acoustic Pipe Acoustic Pipe is used in addition to the detection channel and replace part of reinforced cross-section, but also as post grouting pipes. Tests show that pile after pile bottom pulp processing, can significantly increase their carrying capacity. At the same acoustic tube also serves as accident Defect irrigation tubing and grouting process, then the need to take measures to require squeezing the defective portion of the pipe penetrated. Ultrasonic Transmission Testing of acoustic tube general requirements are: joint firm is not disengaged, slurry seal does not leak; wall smooth, do not discount, smooth without deformation; vertical tube is not skewed; smooth no foreign substance. When the acoustic tube materials or poor installation process, it may cause leakage of plasma, plugging, fracture, bending, subsidence, deformation and other accidents, ultrasonic transmission method pile integrity testing have a significant impact, even It can not be detected by ultrasonic transmission. Treatment Acoustic Pipe plugging 1, for a given change detection scheme in principle. 2, "through tube": When the acoustic tube blockage, the contractor shall take effective measures to "pass control", may use the following three kinds of methods: ① reinforced with thick long poke through test tube; ② with high-pressure water will wash away pipe; ③ using the rig with a small drill bit sweep holes. 3, when it is not "pass tube", according to the following principles: ①, when the first pile of a bridge must be core pulling test. ②, when a non-first pile of a bridge, the construction unit to fill "Change Detection Application Form" Schedule 1 format, and by the Commissioner, the owner's representative and supervisor responsible for signature approval, shall be implemented. ③, if a bridge plugging problem occurs repeatedly, shall timely Pulling testing. 4, increase testing costs shall be borne by the construction unit. [4] 5, supervision and construction unit shall require the declaration before the detection of the acoustic tube inspection; when the need to change the testing program, improve the relevant procedures in advance to avoid the acoustic tube detect issues affecting the smooth progress of the construction. Acoustic effective method for ultrasonic testing after editing Acoustic Pipe is installed, according to the ultrasonic transducer channel in a different arrangement of the pile, pile foundation inspection ultrasonic transmission There are three main ways: (a) within the pile cross-hole transmission Method This method is a more mature and reliable method is the most important form of inspecting pile quality by ultrasonic transmission, the method is embedded in a pile of two or more than two acoustic tube, the tube is filled with water , the transmitter and receiver transducers were placed two pipelines. Detected by the ultrasonic transmitting transducer between the two tubes penetrate concrete departure after receiving transducer receives real effective detection range of the acoustic pulse from the transmitting transducer to the receiving transducer swept area. Depending on the circumstances, the use of one or more test methods, collecting acoustic parameters, according to the change of the waveform to determine the strength of concrete pile, concrete pile judge quality, cross-hole assay based on two transducers relative elevation changes, measurement can be divided into flat, inclined test, measuring cross oblique, sector scan measurement, etc., depending upon detection of the actual need flexibility. [5] (b) within the pile hole transmission method in some special cases there is only one channel available to detect the use of, for example, after coring, we need to learn more about the quality of concrete core samples around a core drilling testing supplement It means, when the hole assay can be used at this time, the transducer is placed in a hole between the transducers with acoustic isolation material (or use a dedicated dual-income out of the transducer). Ultrasonic departure from the transmitting transducer coupled water into the hole wall concrete surface and glide a distance along the concrete surface, and then by coupling water were arriving at the two receiving transducers, which measure the ultrasonic wave propagation along the hole wall of concrete the acoustic parameters. Note that when using this detection method, you must use signal analysis techniques, excluding the impact of interference tube, when the pores have a steel casing, due to the influence of ultrasound bypass pipe in the hole in the wall of the concrete, it can not this method. Superstructure (c) transmission method pile outside the hole when the pile has been no construction or transducer channel within the pile, you can close the soil pile side drill a hole in a pile outside the detection channel, upon detection of the top surface of the pile Place a transmit power larger plane transducer receiving transducer slowly down from top to bottom, ultrasound propagates down the pile of concrete, and through the soil between the pile and the hole from the outside of the pile, hole coupling water enters through the receiving transducer, point by point transmission of ultrasonic acoustic parameters measured, roughly pile quality is determined based on changes in the signal. Since the ultrasonic attenuation quickly in the soil, this method can be measured pile length is very limited, and only judge a sandwich, broken pile, necking. Acoustic Pipe specification model clamp compression Acoustic Pipe's Specification: 50 * 50 * 0.8 * 0.9 50 1.1 50 1.0 50 * 50 * 1.3 * 1.2 * 1.4 50 1.5 50 * 50 * 50 * 1.6 * 1.8 54 1.7 50 * 54 * 1.0 * 1.2 54 1.1 54 1.3 54 * 1.4 * 54 * 54 * 1.5 * 1.7 54 1.6 54 1.8 57 * 1.0 * 1.1 57 * 57 * 57 * 1.2 * 1.4 57 1.3 57 1.5 57 * 57 * 1.7 * 1.6 57 * 1.8 Spiral (flange type, telescopic) Acoustic tube Specification: 50 * 50 * 1.5 * 1.6 50 1.8 1.7 50 * 50 * 50 * 1.9 * 2.1 50 2.0 50 2.2 50 * 2.3 * 50 * 50 * 50 * 2.4 2.5 2.7 2.6 50 * 50 * 50 * 2.8 * 3.0 50 2.9 50 3.1 50 * 3.2 * 50 * 50 * 3.3 * 3.5 54 3.4 50 1.5 54 * 1.6 * 54 * 54 * 1.7 * 1.9 54 1.8 54 2.1 * 2.0 54 * 54 * 54 * 2.2 * 2.4 54 2.3 54 2.5 54 * 2.6 * 54 * 54 * 2.7 * 2.9 54 2.8 54 3.0 54 * 3.1 * 54 * 54 * 3.2 * 3.4 54 3.3 54 3.5 57 * 1.5 * 1.6 1.7 57 * 57 * 57 * 57 * 1.8 * 1.9 57 2.1 57 2.0 57 * 57 * 2.3 * 2.2 * 2.4 57 2.5 57 * 57 * 57 * 2.6 * 2.7 57 2.9 57 2.8 57 * 57 * 3.1 * 3.0 57 * 3.2 3.3 57 * 57 * 57 * 3.4 3.5 Main Products Pipe categories: pipe, galvanized pipe, the huge pipe, stand pipe, spiral pipe, seamless tube; profile categories: angle, channel, I-beam, miners steel, rail steel, H-shaped steel, etc; rebar, wire rod, die steel and accessories. Plate type: Plate, a plate, checkered plate, sheet, Cape plate, cold rolled plate, etc; Contact: Chen 13,678,715,087 (Under-steel sales business, good business, answer all the questions, including your satisfaction) Email: 38,756,527 @ qq.com Company Website: www.yngantao.com Address: Kunming Business Building, Room 3024 New Port Economic Development Zone stingy steel logistics