In the actual application of steel gratings, many boiler platforms, tower platforms, and equipment platforms are often used to lay steel gratings. These steel gratings are often not standard sizes, but various shapes (such as sectors, circles, trapezoids). Collectively referred to as special-shaped steel grating. Special-shaped steel gratings are steel gratings of various irregular shapes such as round, trapezoidal, semi-circular, fan-shaped, etc. produced according to the actual needs of customers. The main processes include corner cutting, hole cutting, and arc cutting, so as to avoid secondary cutting after the steel grating arrives on the construction site, so that the construction and installation are faster and simpler, and the damage to the galvanized layer of the steel grating caused by on-site cutting is also avoided.
1. Shape angle and size
When customers purchase special-shaped steel gratings, they must first determine the size of the special-shaped steel gratings and the places that need to be cut. Punch. It is best to provide detailed drawings. If the size and angle of the special-shaped steel grating are deviated, the finished steel grating will not be installed, causing great losses to the customer.
2. The price of special-shaped steel grating is higher than that of ordinary rectangular steel grating, which is caused by many factors. The main factors are as follows:
1). The production process is complicated: ordinary steel grating can be welded directly with good materials, while special-shaped steel grating must go through the processes of corner cutting, hole cutting, and arc cutting.
2). High material loss: part of the cut steel grating cannot be used and wasted.
3). Less market demand, fewer applications, and complex shapes are not conducive to mass production.
4). High cost of workers: Because the production of special-shaped steel gratings is particularly complicated, the production volume is low, and the production time is long, the wages of workers are particularly high.
3. Special-shaped steel grating area
1). If there is no drawing and processed according to the size specified by the user, the area is the actual number of steel gratings multiplied by the sum of the width and length, which includes the openings and notches.
2). In the case of drawings provided by the user, the area is calculated according to the total outer dimensions on the drawing, which includes the opening and the cut part.
4. The transportation of special-shaped steel grating
The transportation of special-shaped steel grating is more troublesome. It is not as regular as the rectangular steel grating. The special-shaped steel grating is usually of different sizes and some have protrusions. Therefore, pay attention to the placement problem during transportation. If it is not placed properly, it is very likely that the steel grating will be deformed during transportation, making it impossible to install, or bumping will damage the galvanized layer on the surface, which will reduce the steel grating.
https://www.topsteelgrating.com/
