When encountering door and window openings, they shall meet relevant requirements.
c.
（5） .
b.
During construction, the film of emulsion paint should not be too thick or too thin.
The number of brushing times is generally two, and the number of brushing times can be appropriately increased if necessary.
After treatment, the surface shall be flat, dry, free of oil and floating dust.
The rock wool insulation wall is composed of three parts: wall structure layer, insulation layer and facing layer with clear functions.
If welding, there shall be no looseness, false welding and shape defects.
The scraping shall be flat, uniform, smooth and secret room; The line corners and edges are neat.
(5) .
1、 Machine room decoration (I) and roof and floor dust-proof paint project 1 process flow: base course treatment → putty patching → grinding → full putty scraping → polishing → full putty scraping for the second time → polishing → painting the first dust-proof paint → polishing → painting the second dust-proof paint → cleaning.
The primer can be applied by roller coating or spraying.
(7) .
After the main keel is installed, its position, elevation and camber height shall be corrected in time.
the specification of the suspender shall meet the design requirements, and anti rust treatment shall be carried out before installation.
Generally, it is appropriate to fully cover the bottom, prevent virtual shadow and uniform surface.
(4) .
5) The lower frame of glass partition is finished with brushed stainless steel plate.
4) Filling of rock wool After the keel construction is completed, the fireproof rock wool insulation layer is paved in the keel interlayer.
2) Partition frame: vertical deviation < 2mm / 2m; Straightness < 3mm / 2m.
During coating, the coating shall be uniform and shall not be missed.
installation of rock wool board: After the fireproof and incombustible glass wool is paved, check the anchor point, flatness of rock wool board and the bonding quality between connected plates.
C.
If the weather is wet and it is not dry after 4 hours, the time shall be extended and polished after drying.
primer: If high-grade emulsion paint is used, the primer sealing process shall be added after the second full puttying.
frosted paper: Each layer of putty shall be polished with sandpaper.
The next work can be carried out only after it is qualified.
Operation process (1).
apply emulsion paint.
(2) Operating points: 1) setting out: A.
2.
2) The laying direction and sequence of color steel plates shall be determined according to the design drawings, and the keel positioning, grid division and line snapping shall be carried out on the wall.
b.
c.
polishing: 4 hours after the first coat of emulsion paint is applied, it shall be polished with fine sandpaper.
If the primer penetrates into the base course more, it shall be recoated.
Fix the keel, and the connection between the keel and the fixings must be firm and reliable.
(3) Quality standards.
(3) Quality standards.
snap the ceiling elevation line along the wall and column according to the design elevation.
（4） Glass partition (fireproof glass or tempered glass) (1) construction method: 1) Glass partition adopts 80 × 40 square steel frame shall be fabricated, blanking, fabrication and installation shall be carried out according to the on-site dimensions, and the welding shall be firm.
(2) .
Concealed keel ceiling works shall comply with Article 6.1 and 6.2 of code for quality acceptance of building decoration (GB50210-2001).
b.
Check the ceiling framework to ensure it is firm and reliable.
b.
Base course treatment: The base course of different materials shall be treated by different methods.
(6) .
full puttying: The wall putty is prepared from white emulsion paint, talc powder or large white powder and 2% carboxymethyl cellulose solution in the proportion of 1:5:3.5 (weight ratio).
A.
The moisture content of concrete or plastered base course shall not be greater than 10%.
(II) Ceiling Engineering (1) process flow: setting out → installing main keel suspender → installing main keel → installing fixed connector → installing skeleton → installing metal decorative panel.
The first layer of putty shall be fully scraped horizontally, and the second layer of putty shall be scraped vertically.
after the keel is installed, comprehensively correct the position and overall levelness of various keels.
5) Color steel plate installation: a.
3) The upper and lower parts of the angle steel frame are separated by 1000 ~ 1500mm, and the angle steel cable-stayed support is adopted with 8 × 80 fixed with metal expansion bolts.
l) Partition glass: vertical deviation < 2mm / 2m; Straightness < 3mm / 2m.
Rust spots, welding slag and other sundries shall be removed, and antirust paint (or silver powder paint) shall be applied.
(2) .
Quality standards.
the spacing of main keel shall meet the design requirements and shall be less than 1200mm.
5) Ceiling plate installation: after the construction of other professional projects of ceiling specialty is completed and the concealed works are accepted, the installation of ceiling plate shall be carried out.
3) Keel installation: a.
2) After the fabrication of metal structure support is completed, it shall be inspected, and it can be positioned and installed only after passing the inspection.
3) Installation of main keel: a.
b.
The installation condition is that the construction of other professional projects between the wall keel and the matrix is completed and the concealed works are accepted.
Article 8.1 and 8.2 of code for quality acceptance of Building Decoration Engineering (GB50210-2001) shall be implemented.
8 × After fixing with 80 metal expansion bolts and correcting the horizontal and vertical, the surface shall be painted with antirust paint.
(3) .
2) The partition adopts l2mm single piece fire glass, and the periphery of the glass is fixed and decorated with white glass glue.
2) Install the main keel suspender: a.
The snapping line shall be clear, the position shall be accurate, and the allowable horizontal deviation shall be ± 5mm.
3) The vertical joints of the partition glass shall be polished, and the white glass glue in the middle of the partition shall not protrude.
color steel panel wall (1) process flow: setting out → keel positioning → keel installation → rock wool filling → gypsum board installation → color steel plate installation.
Rock wool boards shall be laid in sequence.
construction process: 1) Setting out: a high floor is to be laid 2) The ground is applied with glue and covered with 20mm thick rubber and plastic insulation sponge to ensure firm bonding..
(2) Operating points: 1) before construction, sweep away the dust on the original wall and snap a horizontal line on the wall.
ground insulation (1) .
B the laying method of rock wool board shall be designed before use.
Fix the suspender to the structural ceiling with expansion bolts, which shall be firm and firm; The distance between suspenders shall meet the design requirements and shall not be greater than 1200mm.
Each layer of sandpaper shall polish and level the wall without floating putty and scratch, and clean the floating dust.
Under normal temperature, the time interval of each coating is about 4H.
(2) Process requirements: 1) The metal structure support shall be fastened by welding or screws.
According to the construction drawings, snap the position line of the main keel on the structural ceiling and mark the position of the hanging point in detail.
Calculate the size, cut and blanking, the linear error of the cutting edge shall be less than 5mm, the butt joint shall not be more than 2mmm, and the gap between plates shall be bonded with special adhesive tape.
b.
Install the color steel plate according to the relevant technical manual, and the connection between the color steel plate and the keel must be firm and reliable.
4) Correction and inspection of ceiling framework: A.
After drying, polish it with sandpaper.
（3） .
4) The finish of glass partition frame must be pasted flat without convex and concave.
The keel fixings must be firmly connected with the wall, and the arrangement and spacing of fixings shall meet the requirements of relevant technical manuals.
It is required to be firm.
rock wool boards shall be laid from top to bottom and connected with each other.
cleaning: The splashed dust-proof paint shall be cleaned, and the emulsion paint on the roof and special wall can be sprayed by spray gun in addition to brushing and rolling coating.
4) The special lining board adopts density board and is fixed with self tapping screws.
During full scraping, there shall be no missing scraping, no joint shall be left, and the door, window frame and other parts shall not be stained.
Use a 2m ruler to check the perpendicularity of the keel, and the deviation of perpendicularity shall not be greater than 2mm; Use 2m guiding rule and feeler gauge to check the flatness of keel framework, and the flatness deviation shall not be greater than 3mm.
process flow: Cleaning + laying of ground insulation layer + laying of surface layer + setting out + opening + cleaning.
