Ringlock system scaffolding for sale, also called disc scaffolding, is an upgraded product of scaffolding. It has mature technology, strong connection, stable structure, large bearing capacity, fast assembly, safety and reliability, and many other advantages.
The main components of the socket type disc buckle steel pipe bracket are vertical rods, horizontal rods, vertical inclined rods, horizontal inclined rods, buckle joints, vertical rod connection sleeves, adjustable bases, adjustable brackets, adjustable nuts, and connections Disks, bolts, etc.
The ringlock system scaffolding for sale has become more and more popular in recent years due to its unique advantages. However, due to various reasons such as product quality, irregular construction, and overweight bearing, the scaffolding collapse accidents still occur from time to time. Inspection of the ringlock system scaffolding for sale Detection still needs attention.
Inspection and testing items
Load, adjustable tray, adjustable base bearing capacity, accessory size, pin pullout force, appearance quality, process inspection, dimensional deviation, unilateral shear strength of the connecting plate, double-sided shear strength of the connecting plate, and bending strength of the connecting plate , Tensile strength of the connecting plate, shear strength of the circumferential weld on the inner side of the connecting plate, adjustable support and compressive strength of the adjustable base.
1. Appearance and craftsmanship
By visual inspection and visual inspection, the inner and outer surfaces of vertical poles, horizontal poles, inclined poles and structural parts should be hot-dip galvanized. Paint and electro-galvanized should not be applied. The hot-dip galvanizing process should comply with GB 13912, and the thickness of the coating should comply with GB 13912. Regulations. The surface of the components should be smooth, and there should be no burrs, drips and agglomerations at the joints, and the coating should be uniform and firm.
The surface of the casting should be smoothed, and there should be no casting defects such as cracks, pores, shrinkage, sand holes, etc., and the sticky sand, pouring riser residue, drape seams, burrs, oxide scale, etc. should be removed. All welded joints should be fully welded, and the welds should be smooth and full without obvious defects such as missing welds, weld penetrations, and cracks.
2. Size deviation
Use steel tape to measure length, vernier caliper to measure pipe diameter and wall thickness, angle ruler and feeler gauge to measure verticality, degree thickness detector to measure coating thickness, and the relevant dimensional deviations should comply with "Socket Type Disc Button Steel Pipe Support Components" JGT 503 -Regulated in 2016.
The production quality inspection items of the main components are as follows:
Pole: length, distance between connecting discs, straightness of rods, perpendicularity of rod end facing axis, coaxiality of connecting disc and pole;
Horizontal rod: length, parallelism of buckle joints;
Horizontal inclined rod: length, parallelism of buckle joints;
Vertical diagonal rod: the distance between the bolt holes at both ends;
Adjustable bracket: the thickness of the pallet, the thickness of the stiffener, the outer diameter of the screw rod;
Adjustable base: thickness of bottom plate, outer diameter of screw rod;
Hanging buckle steel scaffolding board: the distance, width, and height of the center of the hook;
Hanging buckle steel ladder: the distance between the center of the hook, the width of the ladder section, and the height of the step;
Foot block: length, width.
3. Unilateral shear strength test of connecting plate
According to the product model of the connecting plate, the corresponding test load is loaded twice on one side, and the load is held for a certain period of time during the second load, and the parts of the test piece should not be damaged.
4. Double-sided shear strength test of connecting plate
Install the sample on the test device, select different loading according to different product models of the connecting plate, load the corresponding test load on both sides in two times, and hold the load for a certain period of time during the second loading, and the parts of the test piece should not be damaged .
5. Bending strength test of connecting plate
Load the sample in two times. After the first load is completed and unloaded, the second load is carried out. After the second load reaches the specified value, the load is held for a corresponding time, and the parts of the test piece should not be damaged.
It should be noted that, because the position of the disc buckle and the steel pipe is fixed, the position of each part cannot be changed after the connection. Therefore, the position of the sample must be flexibly adjusted according to the test requirements during the test.
6. Tensile strength test of connecting plate
Assemble and install the test piece as required, then install the test piece on the test equipment, and load the test piece twice in two times. The test piece should be held for a certain period of time the second time, and the parts of the test piece should not be damaged.
7. Shear strength test of the circumferential weld on the inner side of the connecting plate
Install the test piece, load the test piece for a certain amount of time and then unload it, and then load it for the second time, and continue until the specified time, and the parts should not be damaged during the time.
8. Compressive strength test of adjustable support and adjustable base
Adjust the state of the test piece to meet the test conditions, apply different standard loads to the different types of test pieces, load the second time after unloading, and continue for the specified time, and the parts of the test piece shall not be damaged.
In some special cases, more inspection and testing items may be involved, and we need to deal with them according to the actual situation. If there are related difficult problems, you can also contact a third-party testing agency with corresponding testing qualifications to solve them.