In order to better use stainless steel hardware accessories and stainless steel columns, when we install, we need to carry out reasonable installation according to regulations, or when installing, we need to pay attention to the operation matters, which are the key points. If the installation is unreasonable, it will indirectly lead to The stainless steel column cannot be used normally, and the stainless steel column is even damaged.

 

1. Installation and primary treatment should meet the following requirements:

 

(1) The design elevation, position and quantity of embedded parts must meet the design and installation requirements, and be treated with corrosion and rust prevention. When the embedded parts do not meet the requirements, effective measures should be taken in time to supplement the embedded parts.

 

(2) At the location where the stair railing column is installed, the base concrete must not be loose, and the installation elevation should meet the design requirements, the unevenness must be removed or repaired, and the concave and the base honeycomb pitted surface must not be repaired with cement mortar. , The use of high-strength concrete for repair, and after a certain strength, the railing can be installed.

 

2. According to the design and installation requirements, the installation spacing position and center line of the railing posts are correctly popped up.

 

3.Main points of installation and operation of stainless steel stair railings and handrails:

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(1) The installation of the railing post should be carried out according to the requirements and the order of the construction ink line upwards from the starting point. The columns at both ends of the platform at the start of the stairs should be installed first. The installation can be divided into welding and bolting. During welding construction, the welding rod should be made of the same material as the base material. During installation, the column and the embedded part should be temporarily fixed by spot welding. After the elevation and vertical correction, the welding should be firm. When bolting is used, the holes on the metal plate at the bottom of the column should be processed into round holes to prevent the position of the expansion bolts from being inconsistent. Minor adjustments can be made during installation. During construction, at the base of the installation column, use an electric drill to drill the expansion bolts, connect the column and fix it slightly. If there is an error in the installation elevation, adjust it with a metal thin gasket, and tighten the nut after vertical and elevation correction. After the two ends of the uprights are installed, use the same method to install the remaining uprights. The upright installation must be firm and not loose. Column welding and bolt connection parts, except stainless steel, should be treated with anti-corrosion and anti-rust treatment after installation, and should not be exposed, and a decorative cover or cover should be installed at the root.

 

(2) Inlaid with machine glass, glass and other fences, the fences should be installed after the column is completed. The installation must be firm, and the vertical, horizontal and inclination should meet the design requirements. When installing, insert the railing into the grooves of the vertical poles on both sides. The gap between the groove and the two sides of the railing should be filled firmly with hard rubber strips. After the handrails are installed, they should be embedded with sealant. When the handrails are welded and installed, the fence should be covered with fireproof asbestos cloth to prevent damage to the fence due to welding sparks.

 

(3) The installation of stair handrails generally adopts welding installation (except for special sizes). The material of the welding rod used in the processing of hardware accessories should be the same as the base material. The installation sequence of the handrails should start from the starting elbow, followed by the straight handrails. The armrest interface should be cut correctly according to the required angle and filed with a metal file to avoid inaccurate cutting, causing the armrest to bend and difficult to install. When installing, first fix the starting point elbow and the railing post by spot welding, and weld it firmly after the inspection is correct. After the elbow is installed, the two ends of the straight handrail are temporarily fixed by spot welding to the two ends of the column, and at the same time, one end of the straight handrail is butt-connected and fixed by spot welding. There should be a 2-3mm welding gap at the handrail interface, and then pull the line to connect the handrail It is fixed by spot welding with each column. After the inspection meets the requirements, according to the welding requirements, the interface and the handrail and the column are welded firmly. When welding (especially in winter construction), the welding current, voltage and welding temperature should be mastered to prevent the current from being too large or too small and the voltage is unstable, which affects the quality and appearance of the welding. The welding quality should meet the relevant standards, the width and depth of the weld should be consistent, the surface should be fish-scale, the weld of the handrail joint should be tight, and the weld should have no obvious feel deviation.

 

(4) After the installation of long metal handrails (especially outdoor handrails), its joints should be considered to install movable interfaces that can adapt to temperature changes and expand and contract. The expansion and contraction of movable joints, if there is no design requirement, generally consider 20mm. Outdoor handrails should also consider setting leaking holes at the retractable place. The connection between the root of the handrail and the surface of the concrete and brick wall should generally adopt a retractable fixing method to avoid bending and deformation of the handrail due to expansion and contraction. A decorative cover should be installed at the root of the connection between the armrest and the wall.

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