Decoration weirs

The previous section described how to make a device to drain water from the roof and the walls of the house. That they not only did not spoil the overall look of the house, but it was an ornament, you can arrange them grooved iron. Working with grooved iron does not require special skills and experience,

so get him out of high-quality products may even novice. You will need a picture or pattern and a minimal set of tools: scissors, metal, square, surface gauge, hammer, ruler and some sechek.
Surface gauge for metal work make a plate of hardened steel. On both edges of the tool has a notch. Using surface gauge, draws the line in the parallel edges of the sheet.
Thicknesser can be extendable. With it, you can set the required distance by loosening two screws and moving the plate relative to the base.
Sliced ​​produce three types: round, half-round and straight. The first are made of hardened stainless steel tube of the required diameter.
The working part of their well-sharpened, and the top has a cap to hit it with a hammer. These chopped a hole for the removal of debris material. Sliced ​​available in lengths of 150-180 mm.
Sliced ​​semicircular shape made with a different cross-section - a steep, sloping, medium. Working side sharpen the width 3,5-30 mm. The tool can be made in the home. To do this, take the usual chisel and remove part of his work. Then, using the sanding disc attached to the back of a semi-circular shape, and on the edge of the same circle of the tool do the work, which is then sharpened.
As a direct sechek serve simple chisels, working edge width ranging from 8 to 30 mm, and the wedge angle - 35-40 °.
Possessing skills heat treatment of steel, any necessary tools, including the chaff, you can make yourself.
For this type of work is usually taken galvanized iron roofing or black iron. Preference is given to the black iron because after staining, blackening on it more clearly distinguished figure. Lack of iron is that it rusts quickly, unlike galvanized iron.
Grooved design made on galvanized iron, begins to "play" when the roof and walls of the house are painted in dark colors or against a brick wall.
Before working carefully prepare the workplace. To do this, choose oak or beech block of wood and put it on a stable bench. At the top end and the block of wood should prosekaet iron.
Tinman sits astride the bench so that was a block of wood between the legs. On the right side on the same level with a small block of wood set the box, and on the left - a table. Table needed for your tools, and goats - for horizontal long sheets of grooved thread.
To make holes provided ready-made pattern on prosekaet surface with a ruler, square and other tools to mark up, and then put on a plate block of wood, and all the holes punched chaff, hitting them with a hammer.
The hard part should punch semicircular chaff. Drawing at the edges cut with scissors, metal, and internal - straight cutoff.
Besides the above tools for punching small holes may need hammers.
Trim grooved iron is blackening, ie oxidation.
Blackening spend enamelled vessel, fueling solution. But there is some difficulty:
blacken grooved sheets of large size is difficult.
Before blackening iron prepare - remove it from scale and rust in such solutions
(A substance included in their composition, are given in parts by weight):

1. Formalin - 2.
Hydrochloric acid (20% probability) - 48.

2. Hydrochloric acid - 25. Sulphuric acid - 15. Methenamine - 0.06.
Water - 200.

After removal of the iron scale and rust it thoroughly washed under running water and immersed in a solution for darkening, made one of the recipes:

1. Water - 200. Sodium hypo - 16. Phosphoric acid - 1.4. Ammonium chloride - 12. Nitric acid - 0.6.

Solution was gradually brought to a temperature of about 70 ° C and about 20 minutes to put his iron which covered matt black foil.
The solution can operate at a temperature of 20 ° C. In this case the product is kept there for at least an hour.
On the product appears matte black film, but less stable than at 70 ° C.

2. Water - 200. Sodium nitrate - 35. Sodium hydroxide - 130.

The solution was adjusted to a temperature of 135 ° C and lowered it to 1.5 parts iron Iron is the result of this procedure is covered with shiny black tape.

3. Water - 200. Sodium hydroxide - 300. Sodium nitrate - 6.

The solution was adjusted to a temperature of 150 ° C and placed in a product is not more than 10 minutes. Product is covered with matt black foil.
After blackening product is washed with hot water and dried in the open air. They are then applied in a thin layer of natural varnish.
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