Basic knowledge of Alec saw blade-Dongguan Yibao Knife Saw Factory Alec Saw Blade Basic Knowledge-Dongguan Yibao Knife Saw Factory Ningbo Wason Lighting Technology Co.,Ltd , https://www.nbwasonled.com
The market has great demand for equipment, and the competition between enterprises is also extremely fierce. At this time, if there is no guidance, it will easily lead to the wrong path. Some enterprises will often make small profits for the immediate benefit. To harm the interests of the industry, we must keep a clear head, strengthen our principles, and compete in this market with real strength. The sawing machine is the most popular cutting equipment nowadays. Various cutting equipments are often seen in the market, but there are not many real strengths. Some of the equipments are just famous. We need some means to survive in the market. However, we must also keep in mind our own principles and be a company with real strength, so that it will be more stable and long-lasting in the future development. A saw blade is a general term for a circular tool for cutting solid materials. Saw blades can be divided into: diamond saw blades for stone cutting; high-speed steel saw blades for metal material cutting (not embedded with carbide tips); for solid wood, furniture, wood-based panels, aluminum alloys, aluminum profiles Carbide saw blades for cutting, radiators, plastics, plastic steel, etc.
Place of origin
Domestic saw blade
Domestic saw blades are mainly used to cut stone and wood with more impurities. Domestic saw blades are generally characterized by low prices and many saw blade production plants. Failure to form a saw blade company that can participate in international competition. The market in China is also mainly in the low-end market. Chinese saw blade technology and production technology still need to be provided, and the middle and high-end market is still imported saw blades. Domestic saw blades are concentrated in Jiangdanyang.
Imported saw blade
Imported saw blades are mainly from Europe and Japan. There are many manufacturers in Japan, but many are also produced in China. When choosing the imported saw blade, you must pay attention to the original import and provide the exact customs certificate.
The largest foreign imported saw blade giants are:
Sharp and invincible (Italy)
AKE
Daedalus saw blade (Germany)
Leke (Germany)
Malaysia (Israel)
And source (Japan)
.......
classification
Material
High-speed steel saw blades (HSS saw blades), solid carbide saw blades, tungsten steel saw blades, insert alloy saw blades, diamond saw blades, etc.
Application
Milling saw blade, machine saw blade, manual saw blade, metal special saw blade (aluminum saw blade, copper saw blade, stainless steel "target=_blank>stainless steel saw blade, etc.), pipe cutting circular saw blade, wood saw Film, stone saw blade, cutting acrylic saw blade, etc.
Surface coating
White steel saw blade (natural color), nitride saw blade (black), titanium-plated saw blade (gold), chromium nitride (color), etc.
other
Cutting the saw blade, cutting the saw blade, grooving saw blade, slit saw blade, integral saw blade, insert saw blade, ultra-thin saw blade
shape
01 morse band saw blade
High quality band saw blades for use with any industrial band saw machine for mass production.
02 morse reciprocating saw blade
A variety of options for cutting metals, wood, composites, nailed wood, plastics, rubber, etc.
03 morse curve saw blade
Divided into bi-metal narrow strip saw, high-speed steel narrow strip saw, carbon steel narrow strip saw, tungsten carbide sand narrow strip saw, the cutting range is very wide.
04 morse portable and fixed band saw
We supply high quality band saw blades to professional contractors.
05 morse hand saw blade
Including bi-metal hand saw blade, high-speed steel hand saw blade, carbon steel hand saw blade, tungsten carbide sand hand saw blade.
06 morse abrasives
Including resin cutting wheel, cutting saw, grinding wheel, abrasive cloth wheel, etc., can be combined with high-speed portable sawing machine.
07 morse hole saw
It includes hole saws that need to be configured with shafts and shafts that are not required to be configured. They are also divided into deep-cut hole saws, tungsten carbide hole saws, tungsten carbide sand hole saws, flat drills and graded drills.
The carbide saw blade includes various types of alloy cutter head, material of the base, diameter, number of teeth, thickness, tooth shape, angle, and diameter. These parameters determine the processing capability and cutting performance of the saw blade.
When selecting a saw blade, the saw blade should be selected according to the type, thickness, sawing speed, sawing direction, feeding speed and sawing width of the sawing material.
(I) Selection of cemented carbide types The commonly used types of cemented carbides are tungsten-cobalt (code YG) and tungsten-titanium (code YT). Due to the good impact resistance of tungsten-cobalt cemented carbides, it is more widely used in the wood processing industry. The model commonly used in wood processing is YG8-YG15. The number behind YG indicates the percentage of cobalt content. The cobalt content increases, the impact toughness and flexural strength of the alloy increase, but the hardness and wear resistance decrease. According to the actual situation, choose.
(2) Selection of matrix
1.65Mn spring steel has good elasticity and plasticity, economical material, good heat treatment hardenability, low heating temperature and easy deformation, which can be used for saw blades with low cutting requirements.
2. Carbon tool steel has high carbon and high thermal conductivity, but its hardness and wear resistance decrease sharply when it is heated from 200 °C to 250 °C. The heat treatment deformation is large, the hardenability is poor, and the tempering time is long and easy to crack. Produce economic materials such as T8A, T10A, T12A for tools.
3. Compared with carbon tool steel, alloy tool steel has good heat resistance, good wear resistance, good processing performance, and heat resistant deformation temperature is suitable for manufacturing high-grade alloy circular saw blades from 300 °C to 400 °C.
4. High-speed tool steel has good hardenability, hardness and rigidity, and low heat resistance. It is an ultra-high-strength steel and is thermoplastic and stable for the manufacture of high-grade ultra-thin saw blades.
(iii) The diameter of the selected blade is related to the sawing equipment used and the thickness of the sawing workpiece. The saw blade has a small diameter and a relatively low cutting speed; the large saw blade diameter is required for the saw blade and the sawing device, and the sawing efficiency is also high. The outer diameter of the saw blade is selected according to the different circular saw model.
The diameter of standard parts is: 110MM (4 inch), 150MM (6 inch), 180MM (7 inch), 200MM (8 inch), 230MM (9 inch), 250MM (10 inch), 300MM (12 inch), 350MM ( 14 inch), 400MM (16 inch), 450MM (18 inch), 500MM (20 inch), etc., the bottom slot saw blade of precision panel saw is designed to be 120MM.
(4) Number of teeth Select the number of teeth of the sawtooth. Generally speaking, the more the number of teeth, the more cutting edges are cut per unit time, the better the cutting performance, but the number of cutting teeth requires a large number of hard alloys, and the price of the saw blade is High, but the sawtooth is too dense, the amount of chip between the teeth becomes smaller, which is easy to cause the saw blade to heat up; in addition, there are too many serrations. When the feed amount is improperly matched, the amount of cutting per tooth is small, which will aggravate the friction between the cutting edge and the workpiece. , affecting the life of the blade. Usually the tooth spacing is 15-25mm, and a reasonable number of teeth should be selected according to the sawing material.
(5) Thickness of the thickness of the saw blade. Theoretically, we hope that the thinner the saw blade, the better. The kerf is actually a kind of consumption. The material of the alloy saw blade base and the process of manufacturing the saw blade determine the thickness of the saw blade, the thickness is too thin, and the saw blade is easy to shake when working, which affects the cutting effect. The thickness of the saw blade should be chosen from the stability of the saw blade work and the material being sawed. The thickness required for some special-purpose materials is also specific and should be used according to equipment requirements, such as slotted saw blades, scribe saw blades, etc.
(6) Selection of tooth shape Commonly used tooth shapes are left and right teeth (alternating teeth), flat teeth, flat teeth (high and low teeth), inverted trapezoidal teeth (inverted tapered teeth), dovetail teeth (camb teeth), and not More common industrial grade three left and right, left and right left and right flat teeth.
1. The left and right teeth are the most widely used, the cutting speed is fast, and the grinding is relatively simple. Suitable for cutting and cross sawing various soft and hard solid wood profiles and MDF, multi-layer boards, particle board and so on. The left and right teeth with anti-rebound force protection teeth are swallow-tail teeth, suitable for longitudinal cutting of various boards with tree knots; left and right tooth saw blades with negative rake angle are usually used for sticking due to sharp saw teeth and good sawing quality. The sawing of the panel.
2. The flat tooth saw is rough, the cutting speed is slow, and the grinding is the simplest. Mainly used for sawing of ordinary wood, low cost, mostly used for aluminum saw blades with small diameter to keep the adhesion reduced during cutting, or used to slot the saw blade to keep the bottom of the groove flat.
3. The flat teeth are a combination of trapezoidal teeth and flat teeth. The grinding is more complicated. The sawing can reduce the cracking of the veneer. It is suitable for the sawing of various single and double veneer wood-based panels and fireproof panels. In order to prevent adhesion, the aluminum saw blade also uses a saw blade having a large number of teeth of the flat teeth.
4. The inverted step tooth is often used in the saw blade bottom slot saw blade. When sawing the double veneer wood-based panel, the slot saw adjusts the thickness to complete the bottom groove processing, and then the main saw completes the sawing process of the plate to prevent The kerf has a chipping phenomenon.
5. An example picture of the tooth profile is as follows:
(1) left and right toothed alternating teeth
(2) ladder flat tooth flat teeth
(3) Dovetail anti-rebound swallowtail
(4) Flat teeth, inverted ladder teeth, other tooth shapes
5. Helical, left and right teeth
In summary, the sawing wood, particleboard, and medium-density board should be selected from the left and right teeth, which can sharply cut the wood fiber tissue and smooth the incision; in order to keep the groove bottom flat, the flat tooth shape or the right and left flat Combined teeth; sawing and affixing panels, fireproof panels generally choose ladder flat teeth, computer cutting saws due to large sawing and cutting rate, the alloy saw blade diameter and thickness are relatively large, the diameter is about 350-450mm, the thickness is 4.0-4.8 Between mm, most of the flat teeth are used to reduce chipping and sawing.
(7) Choice of sawtooth angle The angle parameter of the sawtooth part is more complicated and professional, and the correct selection of the angle parameter of the saw blade is the key to determining the quality of the sawing. The most important angle parameters are the rake angle, the back angle, and the wedge angle.
The rake angle mainly affects the force consumed by sawing sawdust. The larger the rake angle, the better the sharpness of the sawtooth cutting, the lighter the sawing, and the more labor-saving the pushing material. Generally, when the material to be processed is soft, a larger front angle is selected, and a smaller front angle is selected.
The angle of the sawtooth is the position of the saw teeth when cutting. The angle of the sawtooth affects the performance of the cut. The greatest influence on cutting is the rake angle γ, the back angle α, and the wedge angle β. The rake angle γ is the plunging angle of the sawtooth. The larger the rake angle, the lighter the cutting. The rake angle is generally between 10-15 °C. The back angle is the angle between the sawtooth and the machined surface. The function is to prevent the sawtooth from rubbing against the machined surface. The larger the back angle, the smaller the friction and the smoother the processed product. The relief angle of the carbide saw blade is generally 15 °C. The wedge angle is derived from the front and back corners. However, the wedge angle should not be too small, and it plays a role in maintaining the strength, heat dissipation and durability of the teeth. The sum of the rake angle γ, the back angle α, and the wedge angle β is equal to 90 °C.
(8) The aperture selection aperture is a relatively simple parameter, which is mainly selected according to the requirements of the equipment. However, in order to maintain the stability of the saw blade, it is better to use a larger aperture device for the saw blade of 250 mm or more. At present, the diameter of standard parts designed in China is 20MM holes for 120MM and below, 25.4MM holes for 120-230MM, 30 holes for more than 250, and 15.875MM for some imported equipment. The mechanical aperture of multi-chip saw is relatively complicated. There are many keyways to ensure stability. Regardless of the size of the hole, it can be modified by lathe or wire cutter. The lathe can be placed in the large hole of the car washer, and the wire cutter can be reamed to meet the requirements of the equipment.
A series of parameters such as the type of alloy cutter head, the material of the base, the diameter, the number of teeth, the thickness, the tooth shape, the angle, and the aperture are combined into a whole hard alloy saw blade. It is necessary to select and match it reasonably to better exert its advantages.
Dongguan Yibao Knife Saw Factory specializes in the production and operation of various machine alloy saw blades, including plexiglass special saw blades, acrylic saw blades, solid wood cross-cut saw blades, aluminum saw blades, high-speed steel saw blades and so on. The company has more than 10,000 stocks for many years, complete specifications, quality assurance, price concessions!
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Basic knowledge of Alec saw blade-Dongguan Yibao Knife Saw Factory