The advantages of the wrought iron stair fence
1)Comply with the design concept for contracted Europe and the United States.
2)Easy to install and convenient.
3)Diverse styles, can be produced according to the requirements of different shapes.
4)Can be used for indoor and outdoor.
5)Prices are more affordable.
The construction method, wrought iron baluster, wood armrest, fabrication and installation
1.1 material preparation
Wrought iron railing of the specifications of the wall thickness, size, shape, should meet the design requirements.
Wood semi-finished products processing, the tree species, specifications, size, shape, according to the design
requirements.Wood material shall be straight texture, color is consistent, must not have decayed, knots,
defects such as crack, distortion.The moisture content is not greater than 12%, elbow generally use
handrails materials to 45 ° Angle section, section special handrail elbow material prepared according to
the requirements of design.
1.2 the main machine
Electric welding machine, welding wire, welding wire, electric drill, hammer, cutting machine, marble
stone machine, plane, small and medium-sized wood saw, hammer, screwdriver, meters, etc.
1.3 operation conditions:
Metal, wrought iron railings and wooden armrest, fixed support installed.
The process of no. 2:
2.1 process:
positioning and pay-off - fixed installation pieces - welding stud to install stone plate, fixed flat steel
welded rails to processing, wrought iron bar, plate, wooden railings installation
2.2 positioning and pay-off:
according to the design requirements, the fixed spacing, location, elevation, slope to looking for a
correction, pop-up rail longitudinal centerline and the position of the frame line.
Fixed: 2.3 installation in accordance with the play the position line of fixed, stiletto installation, each
fixed pieces shall not be less than 2 M10 expansion bolt.The size of the studwelding iron, size should
comply with the design requirements.After inspection, the welding rod.
2.4 welding stud:
welding stud and fixed piece, should be upper and lower two upright position line, each main stud should
be spot welding location check there is no problem, after vertical section again full welding, welding seam
in accordance with the rules and regulations of the design requirements and construction.After welding
shall be clean up the welding flux and antirust processing.
2.5 installation stone plate:
the ground for the stone, railings installation place with the whole piece of stone, after the stud welding,
according to the upright position, will open hole stone set on the vertical bar.Open hole size should
guarantee the rail flange can cover tightly.Install flat inappropriate use of cement mortar.Fixed stone can
strengthen the stability of the stud rail.
Fixed with flat steel welded rails or install wood armrest 2.6:.
Quality standard:
3.1 master project:
railing, handrail production and installation, variety of materials, material quality, specification, quantity
should comply with the design requirements;The modelling of railings, handrails, size and installation
position should comply with the design requirements;Railings, handrails embedded parts, specifications,
location and the number of connected nodes should comply with the design requirements;Rail height and
the distance between rail must comply with the design requirements;Railings, handrails installed must be
strong.
3.2 general projects:
wooden armrest surface should be smooth and flat, no plane marks in the corners, colour and lustre is
consistent, founder and hammer marks, no crack, warp and damage phenomenon;Railings installation
evenly aligned neatly;Railings and handrails metal fittings, no leakage phenomenon;Rail vertical degree:
2 mm (messenger wire, feet check);Parapet spacing: 2 mm (feet check);Rail straightness: 3 mm (pull wire,
feet check);Armrest height difference: 2 mm (feet check).
4 product protection:
When installation shall not damage surface decorate, with hammer hit the wall and door window
frame.Should pay attention to protect the completed metope, ground, ceiling and window from being
damaged.Keep the architectural surface clean.
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Steel Rebar as very important building material, is mainly used in highways, railways, bridges, utilities, buildings, municipal construction, reinforced concrete structures .
steel rebar is known as hot rolled ribbed bar. The hot rolled steel bars are made up of the lowest yield points of HRB and grade. H, R, B were hot-rolled (Hotrolled), ribbed (Ribbed), steel (Bars) three words in the first letter of the English alphabet. Hot rolled ribbed bar is divided into two levels, HRB335 (old No. 20MnSi), three HRB400 (20MnSiV, 20MnSiNb, old No. 20Mnti), four grade HRB500 three grade.
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