Adjustable steel support (steel pillar) is composed of lower casing and upper intubation and adjustable device. The upper intubation is drilled with equal spacing bolt holes, and the upper part of the casing is equipped with adjustable wire sleeve, which can flexibly adjust various heights of the column, convenient and fast installation, especially applicable to the formwork support system of residential buildings.
Adjustable steel support (steel prop) similar to the construction safety technical specification template (JGJ162-2008) was introduced in GH tool type steel tube column in the form of, and was improved, the original wall thickness of 2.4-2.5 mm to 3.0 mm, by the national construction engineering quality supervision and inspection center, makes eight sets of steel support 3 m long, load application has not been 20 kn.Structure and manufacturing process of adjustable steel support:1. Material: Q235 steel pipe2. The casing size is 60*3mm, and the length of the thread section at the top of the casing is 200mm.Cold rolling process is adopted for thread processing. The rolling depth of rectangular thread is 3mm. The actual thickness of the rolling is no less than 4mm, and the slot size is 145*14mm.3. The upper intubation specification is 48*3mm, and a bolt hole with diameter A13mm (bolt diameter A12mm) is made on the transfer table.4. The adjusting nut is made of ball grinding cast iron, which has great strength and toughness.5, adjustable steel support steel bottom plate and steel roof and pipe welding with oxygen protection welder seam welding.
