Sink Process

A pressing sink is an essential piece of equipment that we use every day in our lives. But we don't know how it is made. Here we will introduce several processes for manufacturing pressing sinks.

Here is the content:

l Welding and stretching

l Roll welding process

l Overall stretching process

Welding and stretching

As far as the pressing sink market is concerned, there are three types of sinks: integral stamping (also called integral stretching or joint stretching), roll welding (also called bottom welding), and butt welding, and both roll welding and butt welding belong to the welding basin.

The more common single bowl sinks on the market is mostly produced by the roll welding process, this process is mainly stretching two single slot body, and then pressure type a panel, the two-slot body is welded to the panel, and then repair grinding process. The process has low requirements for the slot stretching equipment, generally within 500 tons of hydraulic equipment can be produced. However, the welding and grinding process requirements are relatively high, the general domestic brands usually use manual roll welding, and manual grinding, and the combination of the slot and the panel is rough, often false welding. Imported brands all use CNC welding and CNC grinding, eliminating the false welding, and grinding the seam is very flat and beautiful.

Roll welding process

The advantages of this process are:

1, The pressing sink panel can be diversified, and the factory production mold input cost is less (slot body mold can be shared);

2, The pressing sink panel can be brushed raw materials or embossed materials, beautiful and generous.

3, Can make a small R angle slot, close to the square, with more usable space.

Overall stretching process

This process is the process of forming two troughs on one piece of material directly stretched by combining molds. The process steps are relatively simple, but the requirements for equipment and molds are high, and the stretching equipment needs to be above 600 tons, or even up to 1000 tons. Whether single bowl sinks or double bowl sinks, the stretching during processing is generally divided into two stretches, but the overall stretching requires a high-temperature solution treatment in between the two stretches. Solid solution treatment (also called annealing treatment) is an important process of stainless-steel processing, it is a process of heating austenitic stainless steel (commonly known as 304 or 316) to 1050 degrees - 1100 degrees, and then rapidly cooling.

The butt-welding process is to stretch two single grooves, each cut flat on two sides and then welded together, and then the whole panel molding. Stretching equipment requirements with roll welding pressing sink, welding equipment selection argon arc welding. This process also has very high requirements for welding and polishing, domestic manufacturers use poor equipment, material thickness is thin, and cannot handle the weld seam very well, so you can often see the middle of the two slots in the beam with weld traces. Do a good brand has Canada Crown, the surface with a mirror is also difficult to see the weld seam. Domestic mainly for the low-end market use, low price. The advantage is the low price and simple process; the disadvantage is the lack of aesthetics.

The three processes complement each other, and the two mainstream processes have their characteristics. In fact, in the design of the pressing sink, some are suitable for the production of the roll welding process, and some are suitable for the production of the overall stretching process, for consumers to suit their own is the best.