Schlagwort-Archiv: low price disc for metal

Method for dressing bowl type diamond grinding wheel by GC cup grinding wheel

The dressing of superabrasive grinding wheels for diamond wheels is usually divided into two stages: shaping and sharpening. Shaping is a micro-cutting of the China cutting disc for metal. The purpose is to remove the shape error and surface defects of the grinding wheel after initial installation to ensure the geometric accuracy of the grinding wheel. The sharpening is due to the passivation of the grinding wheel after working for a period of time. In order to make the cutting micro-blade protrude the bonding agent and have an appropriate height, a sufficient space for chipping is formed between the abrasive grains, and the number of effective abrasive grains per unit area is as large as possible.

The actual geometrical relationship between the GC cup wheel and the bowl diamond wheel is shown in the figure. The bowl-shaped diamond grinding wheel and the GC cup-shaped grinding wheel are completely interlaced and rotated at a certain speed. The rotation speed of the dressing wheel and the grinding wheel is 8:1. The dressing wheel is fixed, and the diamond grinding wheel is trimmed and fed in the axial direction, so that the GC cup grinding wheel and the bowl type diamond grinding wheel form mutual abrasive grinding. Through the grinding of the end faces of the two grinding wheels, the passivation abrasive grains of the low price disc for metal are removed to form a chip space, and the surface of the diamond grinding wheel is re-sharpened to achieve the purpose of dressing.

Definition of wheel strength

Abrasive strength includes tensile strength, flexural strength, compressive strength, and resistance to escape.
The tensile strength of the low price disc for metal indicates that the abrasive is being under the maximum tensile stress. It is a secondary indicator of the manufacture of the abrasive tool and is directly related to the strength at which the abrasive tool can be broken at a high speed.
The flexural strength of the abrasive exhibits the maximum bending stress or bending limit of the abrasive. When the grinding tool is being used for forming grinding, such as thread grinding, crankshaft grinding and various types of plunge grinding, it is required to have good flexural strength and resist the bending stress during grinding.
The compressive strength of the abrasive tool is indicative of the strength limit of the abrasive under pressure. For example, the degree to which the grinding wheel is blunt-breaking and the occurrence of cracking during the radial load grinding is related to the compressive strength.
Abrasives against the escape strength of the performance of the abrasives are under the dynamic load to resist the performance of the escape force.
The strength of the abrasive tool comes from the manufacturing process of the abrasive tool, the performance of the coupling agent and the specifications of the abrasive tool. The factors affecting the strength of the abrasive tool are:
Abrasive type, particle size, variety and performance of the coupling used, abrasive stand, organization, density, mixing and heat treatment process conditions, abrasive shape, 5 inch resin cutting disc for metal outer diameter and pore diameter ratio. The process is currently being made with the characteristics and specifications of the tool. The coupling agent performance and heat treatment process conditions are the most important.

Cracking of the cutting piece

In response to the problem of cracking of the cutting piece on the market, we have made the following answers. As a consumable item, the low price disc for metal will increase its own wear and tear every time it is used. The existence, loss, and corruption of objects conform to the laws of this world. However, if we understand the principle of wear and tear of the cutting piece and understand the cause of the damage, we can take some measures to extend the use time of the cutting piece by grasping the law.
First of all, the reason for the sudden rupture of the cutting piece can be attributed to two points: First, the cutting product itself is a poor quality product, the flatness of the cutting piece is poor, the structure is uneven, the hardness is high, and the resin lacks toughness. Second, the cutting piece aperture and the cutting table shaft are not equipped, and there is a large stress during assembly.
To enhance the user experience, we have some good suggestions:
Due to various reasons in the manufacture and installation of the dicing sheet, the center of gravity of the dicing sheet often does not fit with its center of rotation, which causes the grinding wheel to vibrate at high speeds, which affects the processing, and causes the rupture of the dicing sheet when it is severe. The machine tool is damaged, so the cutting piece must be statically balanced after it has been mounted on the flange. After the cutting piece is mounted on the flange, the flange is placed on the mandrel and placed on the gimbal rail. If it is unbalanced, the heavier part of the cutting piece will always turn to the bottom, move the balance block position inside the ring tip of the flange, balance the center of the cutting piece, and repeat until the cutting piece is free on the guide rail. The position can be still, and the cutting piece reaches a static balance. When installing a new cutting piece, the cutting piece is statically balanced twice. After a static balance, install the grinder and trim the shape of the cutting piece with a diamond pen, then remove the cutting piece and perform a static balance before installation.
In summary, we should first ensure the selection of efficient, safe and wear-resistant cutting disc products in the process of use, and secondly pay attention to the compatibility between products.
The quality of the cutting piece products is high and low, such as high-end such as Norton in the United States and the middle and low-end. Merchants should first analyze the different needs of different people for the grade of 5 inch resin cutting disc for metal, in order to find their own market positioning and improve competitiveness. The demand for the cutting sheet market can be divided into three categories, retail customers, small and medium enterprises, and large enterprises.
Retail customers buy cut-off films, mostly bought for their own use, so their considerations will take into account product performance and price. For this group of people, high-end cutting products are generally not considered, and the quality of low-end products cannot satisfy them, so they tend to choose mid-range products.
The second type of customer is a small and medium-sized enterprise. For small and medium-sized enterprises, the size of the enterprise itself restricts the choice of the enterprise, and the choice of the enterprise affects the brand quality and image of the enterprise product. Therefore, small and medium-sized enterprises, the metropolis chooses mid-range products, and the compromise has always been the traditional value of the Chinese.
The third type of customers are large enterprises. Such customers will choose large cutting chip brands, such as Norton and other cutting film brands.
In summary, mid-range products are the most popular in the cutting sheet market, and merchants must target their customers to sell their own products.

How to identify and identify grinding wheels

Grinding wheel ultra-thin is relatively unfamiliar to many friends. Although it plays an indelible role in the industry, how much do you know about the grinding wheel? As a professional abrasive grinding tool manufacturer in Henan, the grinding wheel ultra-thin manufacturer tells you how to identify and identify the low price disc for metal:
For example, the grinding wheel commonly used on the M1432A universal cylindrical grinding machine shows the characteristics of the grinding wheel:
1——Wheel shape (parallel)
400x50x203 – grinding wheel size (outer diameter x thickness x aperture);
A——abrasive (brown fused alumina)
60 – particle size (F60)
L——hardness (medium soft 2 small grade)
6 – Organization (medium)
V——Binder (ceramic)
35m/s – high working speed
Different abrasive wheels can also be identified by color, such as brown-brown brown corundum grinding wheel; black and metallic luster is black silicon carbide grinding wheel, green and metallic luster is green silicon carbide grinding wheel. Note that the safe speed of the grinding wheel can not be higher than the high working peripheral speed of the grinding wheel.
The grinding wheel must be carefully inspected and identified before installation. The steps for checking the identification are:
1. Check if the grade of the grinding wheel is correct and whether it meets the performance, shape and size of all selected grinding wheels.
2, check and identify the appearance of the grinding wheel. Use the eyes to observe whether the appearance of the grinding wheel is damaged (or there are cracks). The grinding wheel with appearance damage (or crack) can not be used. In addition, the two ends of the grinding wheel are required to be flat, not obvious Skewed.
3. Inspect and identify the internal crack of the 5 inch resin cutting disc for metal. Use a hand-held grinding wheel to tap the grinding wheel with a wooden hammer to listen to its sound. The grinding wheel without cracks gives a crisp sound, and the grinding wheel with cracks is hoarse, which cannot be used.

Grinding wheel adjustment method

When the grinding wheel is used, it may encounter some problems, such as finding that the operation is unbalanced. At this time, we need to carry out a balance test to make it work better. The method of adjusting the balance of the grinding wheel has dynamic balance and static balance. Now Henan abrasives manufacturers come to simply say:
(1) Static balance method. Static balance adjustment is carried out on the balance frame. Manually find the center of gravity of the grinding wheel, install the balance block, adjust the position of the balance block, until the wheel balance, generally the wheel can be balanced in eight directions.
(2) Dynamic balance method. This method directly displays the unbalance amount of the grinding wheel device when rotating by means of the sensor mounted on the machine tool. By adjusting the position and distance of the balance block, the unbalance amount is controlled to be small.
Adjusting it by static balance method or dynamic balance method can make it reach balance quickly, so as to facilitate the normal work of the low price disc for metal.
The grinder is one of the common mechanical equipment used in machinery factories. It is common equipment used to sharpen various tools and tools. Today, we will take a detailed understanding of the lower grinding wheel:
The grinding wheel is a kind of grinding tool with a large amount of use and wide use. It can be rotated at high speed during use. It can grind, semi-finish and finely grind the outer circle, inner circle, plane and various profiles of metal or non-metal workpieces. Grinding and grooving and cutting.
There are many kinds of grinding wheels. According to the abrasives used, it can be divided into ordinary abrasives (corundum and silicon carbide) grinding wheels and natural abrasive superabrasives and (diamond and cubic boron nitride) grinding wheels; according to the shape, they can be divided into flat grinding wheels and beveling grinding wheels. Cylindrical grinding wheel, cup-shaped grinding wheel, dish-shaped grinding wheel, etc.; according to the bonding agent can be divided into ceramic grinding wheel, resin grinding wheel, rubber grinding wheel, metal grinding wheel, etc. The characteristic parameters of the grinding wheel are mainly abrasive, viscosity, hardness, bonding agent, shape and size. Etc. Since the grinding wheel usually works at high speed, the rotation test should be carried out before use (to ensure that the grinding wheel does not break at high working speed) and the static balance test (to prevent machine vibration when working).
After the grinding wheel has been in operation for a period of time, it should be trimmed to restore the grinding performance and the correct geometry.
The rotation speed of the grinding wheel is very high and brittle. Therefore, it should be strictly in accordance with the safety operation rules. If there are more related problems related to the 5 inch resin cutting disc for metal, you can contact the Henan abrasive grinding tool manufacturer to advanced technology. Horizontal and reliable product quality to meet everyone’s needs.

Organic abrasive properties

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The organic abrasive tool is characterized by wide application range, certain elasticity and high bonding strength, and good polishing performance. It is applied in rough, fine, fine, throwing and other grinding processes and its resin abrasive has the following Features:
1, has a certain flexibility
Compared with ceramic abrasives, resin abrasives have good toughness, certain plasticity, and ductility. Their elastic modulus (E) is several times lower than that of ceramics. Therefore, resin abrasives are suitable for preparing various sizes of thin grinding wheels and high speed. Cutting the grinding wheel, and at the same time, due to a certain elastic deformation, it can buffer the grinding force, so the grinding effect is good, and the polishing effect can improve the roughness of the machined surface.
2, a wide range of applications
Due to the variety of new resin binders, it can be made into resin abrasives of various strengths and properties. Therefore, it can be widely used in roughing, rough grinding, cutting, semi-finishing, fine grinding, polishing, etc. Resin abrasives combined. High strength, high speed, impact resistance, suitable for rough grinding and rough grinding. Resin abrasives have good toughness and are suitable for the low price disc for metal. Resin abrasives have good elasticity and certain polishing properties. They can be used for fine grinding and Polishing, resin abrasives have low heat resistance and are easy to wear, suitable for surface grinding and fine grinding.

Application in the military industry

low price disc for metal are widely used in the military industry, focusing on the manufacture of weapons, aerospace, military equipment manufacturing, firearms manufacturing and other weapons and equipment manufacturing. The scope of application is not only wide, but also high in technology and accuracy requirements. High, which determines the use of abrasives in the military industry, must go high. Fine.
The use of abrasives in aerospace equipment, the use of abrasives in satellites and their applications, the use of abrasives in the manufacture of sophisticated weapons and equipment.
Although China’s abrasives industry has a history of development for decades, most of China’s abrasives and abrasives products are mainly medium and low-end products. However, the military industry has strict requirements on abrasives and abrasives. In the military industry, it is necessary to change the mode of production, increase investment in science and technology, improve the scientific and technological content of products, and adhere to the high-end development direction of products.
Wide range of applications for ultra-thin cutting blades, cutting blades play an important role in industrial production. The correct installation of cutting blades is directly related to the safety of the production process.
1. Before installing the ultra-thin cutting piece, the marking of the cutting piece must be checked first. The grinding wheel with unclear or unmarked mark must be re-tested by the rotation, otherwise it is easy to be confused.
2. It is necessary to understand the working line speed of the ultra-thin cutting piece. If the cutting piece with a working line speed of 50 m/s is mounted on a machine with a working line speed of 80 m/s, it is easy to break.
3. Before installation, use a wooden hammer to tap the cutting piece. If a crisp sound is produced, the quality of the 5 inch resin cutting disc for metal is qualified. Otherwise, there may be cracks in the grinding wheel. This type of grinding wheel cannot be used.
4. The flanges sandwiched on both sides shall have the same shape and shape. The diameter of the flange is generally half the diameter of the resin grinding wheel, and the inner side shall have a concave groove. Between the end face of the grinding wheel and the flange, it shall be padded. An elastic cardboard or leather with an thickness of about 1 to 2 mm. Oil-resistant rubber gasket. The diameter of the gasket should be slightly larger than the outer diameter of the flange.

Precautions for replacing the cutting piece

100 and 400 diameter grinding wheel cutting discs are the most commonly used. Choosing what low price disc for metal have a lot to do with the type of cutting machine itself, the cutting machine power is small, you can choose the sharp type. The cutting machine power is large (more than 3000W), You can choose high-quality cutting pieces. And use the grinding wheel cutting machine to make the grinding wheel rotate in the direction of avoiding the surrounding staff. The material to be cut should not reach into the sidewalk. The precautions for the cutting of the grinding wheel when it is replaced;
When replacing the cutting wheel of the grinding wheel, the power must be cut off. The newly installed grinding wheel cutting piece must meet the requirements of the equipment, and the cutting piece with quality problems should not be installed. The installation procedure should be carried out according to the installation procedure.
After replacing the cutting wheel of the grinding wheel, it is necessary to test whether there is obvious vibration. It can be used after confirming that the operation is normal. The control box or switch must be intact and have grounding protection. The protective cover of the transmission and the grinding wheel must be safe and reliable and can block the grinding wheel from breaking. The debris that flies out afterward. The end baffle should be firmly mounted on the cover and must not be removed during work.
Diamond cutting disc is an excellent one in the ultra-thin grinding wheel. It is very strong and sharp, can adapt to various cutting operations, and is resistant to corrosion. It is one of the most commonly used cutting materials, so let the grinding wheel now. Ultra-thin manufacturers introduce us to some of the contents of diamond cutting blades, processing range, and classification, etc., I hope to show you the powerful performance of diamond cutting blades.
First, the processing range of diamond cutting blades
1. Suitable for the cutting of terrazzo marble.
2. Cutting of cement pavement, hard refractory materials, and non-metallic materials.
3. Slotted pieces to the road, bridge, channeling of the river.
4. The road engraved on the pavement, the bridge deck.
5. Widely used in municipal construction, road reconstruction, airport runway construction, concrete pavement, and other construction sites, especially suitable for professional cutting operations such as asphalt and concrete pavement cutting.
Second, diamond cutting sheet classification
1, continuous edge saw blade: continuous sawtooth diamond 5 inch resin cutting disc for metal, generally made by sintering method, commonly used bronze bond as the base carcass material, water must be added to ensure the cutting effect when cutting, and the type of slit is cut by the laser with a laser.
2, the cutter head cutting piece: the sawtooth is broken, the cutting speed is fast, suitable for dry and wet cutting methods.
3, turbine type cutting piece: combined with the advantages of the first two, the sawtooth continuously presents a turbine-like uniform convex and concave, which improves the cutting speed and increases the service life.

Tips for choosing a grinding wheel cutting piece

Cutting is widely used in ordinary steel, stainless steel metal, and non-metal sheets, and it can be divided into fiber resin cutting sheets and diamond cutting sheets according to different materials, and high-speed resin cutting sheets are also more efficient, convenient, economical, etc. The unique performance has been adopted in many industries, but there have been some problems. How do we choose the right cutting piece, what good way is there? Share the secret of choosing the low price disc for metal.
The first is the use of the cutting piece, which is selected according to the occasion of the use of the cutting piece. The cutting piece can be divided into cutting and grinding according to the way of use. The performance requirements of the cutting piece are different in different use cases, so it is reasonable. Choosing the cutting piece is very important. We have to choose the cutting piece according to the occasion we use, which can increase the safety factor. Improve work efficiency and reduce the cost of our use.
Although it is a small cutting piece, it has a lot of attention. In daily life and work, we must strictly follow the operating standards to enter the project, otherwise, it may bring serious consequences.
The ultra-thin cutting piece is made of resin fiber material, which is not easy to be broken, safe to use, and the cutting performance is particularly remarkable. The grinding wheel ultra-thin sheet is most suitable for cutting stainless steel, titanium alloy, nickel alloy, general metal material. Unhardened steel. Cast iron. Alloy cast iron, carbon steel, alloy tool steel, quenching steel, castings and high-hardness materials such as hot brittle materials. It has two types of dry and wet cutting methods, which makes the cutting precision more stable, and its cut is not black. Beautiful.
It is characterized by small machine load, fast cutting and sharp and durable. Now, this high performance cutting disc is often used in stainless steel tube, capillary tube, glass tube, quartz tube, automobile exhaust pipe, brake wire, tungsten wire, molybdenum wire. Copper wire and other pipe and wire cutting, and it has a good effect on the cutting of special steel and the groove of the workpiece.

How to reduce the phenomenon that the abrasive particles are easy to fall off

The polishing sheet will be damaged to varying degrees during use, so it is not easy to detect. The reason why the polishing sheet is easy to fall off is related to the hardness of the polishing sheet. The hardness of the polishing sheet refers to polishing. The degree of difficulty of the abrasive grains on the surface of the sheet falling off from the bonding agent under the action of the cutting force. If the abrasive particles are easy to fall off, the hardness of the abrasive article is low; otherwise, the hardness is high.
The general principle of hardness selection of polishing sheet is: to grind hard material, soft-grinding disc should be selected to maintain good self-sharpness, improve the service life of high performance cutting disc, reduce grinding force and grinding heat; When softening the material, the hard grinding wheel should be used, which can keep the sharp edge of the abrasive grain sharper for a long time, which is good for cutting. The details are as follows:
1. When grinding toughness, such as non-ferrous metal workpieces, high-hardness cutting tools, grinding thin-walled parts and materials that have blocked the grinding discs, softer grinding discs should be used; super-soft grinding discs should be selected for mirror grinding.
2, the workpiece material is the same, longitudinal grinding and plunge grinding, peripheral grinding and end grinding, cylindrical grinding and inner circle, plane grinding, wet grinding in dry grinding, fine grinding in rough grinding, intermittent surface grinding Cutting and continuous surface grinding, etc., the former must use a harder than the latter.
3, high-speed, high-precision grinding, steel blank grinding, workpiece deburring, etc., should choose a harder grinding.
Generally speaking, it is required to have high efficiency, large surface roughness value, the large contact surface between the low price disc for metal and the workpiece, or grinding of the workpiece to the level of the workpiece, high toughness of the workpiece material, large elongation and processing of thin-walled workpieces. Some granularity; conversely, processing materials with high hardness, brittleness, and tight structure; when grinding, forming, or high-speed grinding, choose a smaller particle size.
What types of commonly used abrasives are available?
Abrasives are widely used in industry, especially when machining high-precision or low-roughness parts or particularly hard parts. Abrasives and abrasive tools are indispensable. In actual production, the commonly used abrasives are artificial emery, silicon carbide, Corundum, diatomaceous earth, quartz sand, and pumice. The following are the types of abrasives commonly used by Henan abrasives manufacturers.
Commonly used abrasives generally have the following three categories:
(1) Oxide abrasives, powdered and lumpy, mainly used for grinding carbon tool steel, alloy tool steel, high-speed steel, and cast iron.
(2) Carbide abrasives, which are powdery and have a higher hardness than oxide abrasives. They are often used to grind high hardness materials that cannot be ground by oxide abrasives, such as cemented carbide, ceramics, and hard chrome.
(3) Diamond abrasives, both artificial and natural, have higher cutting ability than oxide carbonate abrasives, and good eye mask quality, but because of the high price, they are usually only used for grinding cemented carbide, synthetic diamond, hard chrome. And a variety of high hardness materials.