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Do you know how to cut glass by hand?

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Do you know how to cut glass by hand?

Release date:2018-06-12 Author: Click:

Place the glass on a flat, firm, felt surface, rub the kerosene along the line of the knife, and then straighten the glass knife along the ruler to the end of the knife. Then wipe the kerosene over the knife and use the knife. Evenly hit the glass from the beginning to the end of the knife mark. Scratch the glass close to the edge of the tabletop and force it.

Note:

1, rub kerosene is to rub kerosene before the next knife, cut it again and wipe it again.

2, knock back, knock is mainly to make the glass further cracked along the knife marks, so that the oil to eat further inside.

3. When scratching, the scratches will be tightly attached to the edge of the tabletop. Both hands hold the glass at equal distances to cut the part, and the tip is slightly upwards, and you can quickly fold it downwards (said inch vigor).

(1) Ordinary plate glass:

According to the specifications of the glass for installation, it should be combined with the reasonable specification of the boxing glass in the case of centralized cutting. When the sleeve is cut, it should be in the order of “cut first, then cut later, cut first, and narrow later”.

The actual size of the doors and windows should be measured before the actual cutting. The actual size of the glass is usually reduced by 3mm from the actual size of the doors and windows to facilitate installation.

Specific glass cutting operations are as follows:

How to use the glass knife:

Holding the knife is the key action of glass cutting. The thickness of the marking and the size of the force exert a certain influence on the separation of the glass. It is necessary to grasp the size of the force and the direction and angle of the knife.

When the knife is cut, the wrist should be straight, the knife bar should be close to the index finger, the plane formed by the knife bar and the cutting direction should not be perpendicular to the knife bar (that is, the angle between the ruler and the knife bar is not a right angle, but a ruler behind the knife. The acute angle with the tool bar should be slightly tilted backwards.

The middle of the arbor should not be too high or too low. The cross-section of the arbor and the ruler should be perpendicular to the cross-section and should not be tilted in or out. If the diamond blade is tilted, it can be cut along with the knife edge position.

The glass knife can't move too hard when moving backwards as long as you hear a slight continuous click on the glass surface. At this time, the glass has a very fine grain, and then the glass can be opened by hand.

For narrow glass strips, when it is not open by hand, it can be knocked by a glass knife to make the glass shake out cracks and open again. If there are any remaining strips that are not opened, a soft cloth can be used to remove the remaining glass edges. .

If you cut a glass longer, it is best to cut it all in one go; do not re-draw on the stenciled lines. If you must re-draw it, you can draw it on the back, or you may miss the position above 1.5mm.

After holding the knife steady, run the move pattern, the angle of the blade front and the glass plane must always be the same, do not lean forward, do not sway left and right, can only make the force of the full arm move back until it reaches the end .

According to the different thickness of the glass, different specifications of the ruler are applied;

Such as cutting 2-3mm thick glass, available 12mmXl2mm thin wood ruler;

Cut 4-6mm thick glass, available 4mmX 50mm wood ruler;

When cutting 8-12mm wide glass, a 5mm X30mm wooden ruler is required;

Sometimes the ruler can be used according to the operator's habits. During the specific cutting, use a wooden folding rule or a steel tape measure to measure the size of the glass frame, and then set the cutting size on the ruler; consider leaving 3mm neutral and 2mm blade.

If you cut 2-3mm thick glass, you can put the small nail on the ruler close to the side of the glass, the glass knife close to the other end of the ruler, and the glass edge caught by one hand holding the small nail does not make it loose, the other hand Grasp the blade straight back to the cutting, can not have light weight and bending phenomenon.

The method of cutting the large glass of 5-6mm thick is to apply kerosene in advance to the cutting edge, in addition to applying different rulers. After the glass cutting, kerosene will seep into the knife edge, which will easily pull it off.

When cutting large pieces of glass, due to the large area of glass, people cannot stand on the ground, so the operator needs to remove the shoes to stand on the glass surface to cut, so a layer of flannel must be put under the glass (that is, on the table). Press the glass evenly.

After cutting, remove the glass and hold one end of the glass with both hands. At the other end, use the weight of the glass or evenly press a certain weight. Pass the edge of the desk and pull your hands down evenly. This must not be careless. Causes the breakage of the entire glass.

Cut off the special glass method:

For the cut round glass, a diamond ruler knife is used to cut the glass, and a glass having a diameter of 1 to 1000 mm and a thickness of 3 to 6 mm can be cut. To cut other shaped glass, you must make a sample or set a plate in advance, and then cut it to make it accurate.

When cutting glass slats for terrazzo floors, in order to ensure the consistency of the width of the glass strips, the bottom left edge of a 5mmX 30mm wooden ruler can be temporarily nailed to the workbench. The top end of the wooden ruler is fixed to the workbench with nails. Upper (need to be nailed so that the ruler can rotate, and can move a few millimeters up and down).

At the same time, on the right side of the ruler from the ruler, it is equivalent to the width of the glass strip plus 2-3mm, and two small nails are nailed on the table as the top of the glass. At this time, a glass knife with a certain width can be cut with a glass knife on the right side of the ruler.

After the cut one is taken out, push the big glass forward to the position where it hits the nail, and continue to cut it by the ruler, so that the cutting is carried out continuously, and the width of the glass strip can ensure - -.

The cut glass semi-finished products should be placed obliquely against the wall according to the specifications, and the wood strip with the same thickness and width of 50 mm should be placed underneath. For centralized cutting glass, it should be packed and numbered according to different specifications to facilitate short-distance transportation. After packing, the upper mouth should be upright and avoid placing flat. In addition, it is also necessary to cover the cloth for rain protection.

(2) Wire glass

The cutting method of cut wire glass is basically the same as cutting ordinary flat glass of 5-6 mm thick. However, cutting of wire glass is difficult to grasp because the glass surface is uneven when cut, so it is necessary to look for stable gripping of the knife edge. The cutter head is harder than the normal flat glass and the speed of the cutter is correspondingly faster, so that there will be no problem of bending or straightness.

When the glass is pulled off after cutting, hold the glass with both hands and simultaneously pull it down evenly to break the glass along the cut line. If the wire is not broken, you can insert a slender wood strip in the glass slit, and then pull it down firmly. The wire can be pulled off. Then use a pair of pliers to bring the wire down so that you do not scratch the palm when carrying it. After cutting, cut the edge of the mouth should be coated with anti-rust paint to facilitate the use of glass.

(3) Embossed glass

When cutting the embossed glass, the embossing surface should face downwards, and the cutting glass method is the same as that of cutting wire glass.

(4) Frosted glass

When cutting frosted glass, the matte side should face downwards, and the force should be evenly applied when cutting downwards after cutting. When pulling up, it is necessary to press a small wooden bar at the cut glass seam and then pull it up and back. The cutting method is the same as cutting the flat glass.

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