Ultrasonic tube and an overview of content: Ultrasonic tube is the only specialized application of ultrasonic testing of a reliable system. The basic concept is the use of steel pipe major after forming, the use of fasteners, screw connected at pouring concrete when there is a reliable anti-seepage effect.
Ultrasonic tube molded products usually include the standard length of 9M, 6M, 3M, and a sealed steel apron and a fastener. Can reserve a channel to enable detection of the first to have direct access to the bottom pile.

Products Photos:

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Connection:

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Model specifications：

Note: DF on behalf of Deng Feng, SZG Representative: Ultrasonic Testing of pipes, 50,53 ... on behalf of the specifications,-I on behalf of Model

Product ID	Nominal outside diameter（mm）	Wall thickness（mm）	Length（mm）
DFSZG-50-10	50	1.0	3000	6000	9000
DFSZG-50-12	50	1.2	3000	6000	9000
DFSZG-50-15	50	1.5	3000	6000	9000
DFSZG-53-10	53	1.0	3000	6000	9000
DFSZG-53-15	53	1.5	3000	6000	9000
DFSZG-53-20	53	2.0	3000	6000	9000
DFSZG-57-20	57	2.0	3000	6000	9000
DFSZG-57-25	57	2.5	3000	6000	9000
DFSZG-57-30	57	3.0	3000	6000	9000

Technical parameters:

Item		JT/T705-2007 standards
Appearance		Visual and hand inspection by acoustic tube without burr, cracks, scarring, folded, layered, up welding defects, zoned Road, abrasions, incorrect weld, burn, thin oxide. Curvature is not more than 5mm/m
Size	Diameter	±1.0%
	Wall thickness	±5%
Tensile strength (MP)		≥315MP
Tensile test (elongation)		≥14%
Flattening test		When the distance between the two pressure plate to the acoustic tube diameter 3 / 4 when there is no crack
Bending test		Acoustic filler tube without bending radius of the nominal diameter of 6-fold, bend angle of 120 °, there is no acoustic crack pipe
Hydraulic pressure test		Acoustic pressure injection pipe sealed at both ends to 5MP, the acoustic tube without leakage
Current Injury		Acoustic pipe weld without trachoma, cracks
Seal test		External pressure P = 215S / D no leakage, interface is not deformed
		Internal pressure P = 215S / D no leakage, interface is not deformed
Pull-out test		At room temperature, it should be able to withstand the pulling force 3000N, sustained no loose parts to connect 60min, fracture
Vibration Test		1.2MP stress of the trial, the 10 million sustained vibration, joint leakage and loss-free situation
Torque Test		Torque from 120N.m, sustained 10min, no slip joints
Hardness Test		HRB ≥ 90 acoustic hardness of tube wall

Construction Technology:

Detect control of this principle in order to facilitate the reliable use of the production of reinforced stitching at first, hanging equipment, when reinforced after connecting position, with the reinforcement cage is installed at the end of the first cage into the welding position, the upper part of the use of banding wire, each 2 -- Banding together with rice 3. To ensure that the detection of the vertical tube position in favor of pile testing, and to prevent collisions of concrete conduit.

1, Fixed-length tube Detect
Detection of tube length to the length of reinforcement cage shall, at the end of the steel tube should be slightly longer at the end of the cage 20-30 cm

2, Testing the installation of pipes at the end of the cage
Detect the end of tube pipe with a hoop folder activity, according to the actual construction location, and then welded to the steel cage on to live a fixed detection tubes, to prevent floating and rotating

3, Tube cage installed Detect
Reinforcement cage forming tube and then take over the installation of detection, detection of control points up to U-reinforced active position, can slide up and down, side jack S-type bars linked with the positioning of reinforcement cage to be installed, remove the S-linked, the testing tube down, insert the end of pipe, then tighten the nut with wrench fixed, at intervals of between 2-3 meters tied with wire, fixed. And so on

4, The top cage tube installed Detect
Cage at the top of reinforced after the installation and testing completed to cover all joints to ensure that the tightened firmly, detection tube to be filled with water, screw on the final head-specific, this process all operations finish

5, Testing for the half pipe in the pile cage installation
Detection tube can be welded in accordance with the actual situation in sub-location, easy hoops reinforced the positioning of reinforcement cage in the absence of circumstances that can be installed, compared with other joints, can save three steel, Convenience and Safety