Three factors of Choosing forging grinding balls

Three factors of Choosing forging grinding balls

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)
Email: info@skewrollingmill.com

In the field of powder engineering industry, for forging steel ball are familiar with this new type of wear-resistant materials.It not only has the good performance-to-price ratio, and smooth surface , compact structure, high impact toughness, good wear-resisting performance.In addition, because it has the character of steel, steel ball also has a uniform hardness, no breakage, abrasive resistance, high impact value, using integrated high efficiency etc.
As the forging steel ball is used more and more widely, so how to choose the appropriate forging steel ball?What kind of factory is appropriate?There are three main factors, respectively quality, price and after-sales, the following specification about them.
Quality, it is one of the most important distinguishing factor of choosing the forging steel ball .The quality of the forging steel ball is required,it will be eliminated if can not meet the corresponding requirement , which from another aspect reminds manufacturers should pay attention to the quality of the product.
Price, the price is not only important for forging steel ball factory, the purchaser.For purchasing ,lower price, more better, but from the forging process of steel ball, it is impossible.Thus the price of forging steel ball are questionable.
Purchaser is more worried about after-sales, because forging steel ball is high consumption product, high quality and perfect supporting services can ensure good use of steel ball.

Advantages of Forging Steel Balls

Advantages of Forging Steel Balls

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)
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(1) Forging can eliminate casting pattern loose and other defects, during the smelting process; improve microstructure; have higher mechanical properties than casting steel ball, for saving the complete metal streamline. Important components with heavy load, under hard working conditions, are forging pieces usually.
(2) Forged steel ball is made of the finished round steel, so its larger density reduces its breakage rate and increases ore processing of ball mill, to achieve the goal of saving energy and reducing consumption. Meanwhile, forged steel ball can reduce impacting to lining board to reduce investment.
(3) In addition, forging steel ball must select the best wear-resisting materials, such as 60Mn, 65Mn and other good wear resistant alloy steel materials self-researched and self-developed by some companies.
(4) Moreover, forging steel ball is popular for its cheap price, economy and durability. For example, international mining giants-Rio Tinto, BHP Billiton, AngloGold, etc, use forged steel ball usually.

Several factors of making sure the quality of grinding balls

Several factors of making sure the quality of grinding balls

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)
Email: info@skewrollingmill.com

The steel ball or steel grinding ball are a material grinding media of ball mill and coal mill. It functions as an important component of ball mill under grinding and cutting effect brought by the friction between grinding balls or grinding ball and materials. It has an important position in national economy like mineral processing,power station and cement plant.
Suchuang Machinery Industry Co., Ltd is a professional manufacturer and exporter of skew rolling mill in China.Priorities of our steel balls produced by skew rolling mill: High hardness, good wear resistance, breakage rate lower than 0.5%, no deformation all through. Our modern quality assurance center could guarantee all our products meeting customers' need.Therefore,about how to make sure the quality of grinding balls,we can give some suggestions.
The top quality from the grinding steel balls of ball mill influence is not just its productivity, but the ball consumption, as a result influence the price from the grinding media. The primary standard of your variety of steel balls is that the productivity of ball mill should really be higher as well as the value, the grinding media should be minimal due to the fact only large productivity and lower cost of grinding media can deliver large economic rewards.
When deciding on grinding steel balls, their density and hardness are two factors that cannot be ignored.
1. the density of steel balls on ore grinding:
Generally speaking, about the issue in the similar dimension.The bigger the density on the steel balls, the increased the productivity of ball mills might be.
2. the hardness of steel balls on ore grinding:
Commonly speaking,the boost of hardness.If your steel balls never break, the unit consumption of steel balls will reduce,if your dimension of the steel balls is small,the energy that ball mills absorb for transformation, the power is going to be utilized for crushing the ore particles, so raising the productivity of the grinding mill is important. And,in order to the enhance of the hardness,the steel balls ought to be appropriate with the ball mill and the materials.

Energy-saving Ball Mill Introduction

Energy-saving Ball Mill Introduction

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)
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Energy saving ball mill is an efficient tool for grinding many materials into fine powder after they have been broken into certain sizes.
It is widely used in chemical industry,new building materials, silicate product,fire-proof material,fertilizer industry, black and non-ferrous metal processing, as well as glass-ceramics industry, It does dry or wet grinding for all kinds of ores and other materials.
Characteristics of Energy-saving Ball Mill
1.More energy saving; save production cost;
2.Durable main shaft; save lots of maintenance charge;
3.Low failure rate; easy maintenance;
4.Save more 35% energy than normal ball mill;
5.Save work and time; high production and efficiency.

Comparation between casting ball and skew rolling ball

Comparation between casting ball and skew rolling ball

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The disadvantage of the casting ball production manufacturing technique：
    1、The essence of the casting ball is pig iron, After adding a large amounts of chromium element (13-28%), achieving the requirement of the grinding ball
    2、The casting ball is organization loose, coarse grain, Wear-resisting performance is relatively poor, Impact toughness is poor
    3、High energy consumption, pollution, the labor intensity of workers, low labor productivity.
    4、High cost of raw materials,High wage costs, expecially diameter under F50mm casting ball, Its cost is higher.
    Relative to the ball,Hot skew rolling steel ball is a new kind of rolling technology, It is the grinding steel ball manufacturing technology breakthrough, It gradually replaces casting ball,The features of the hot skew rolling steel bal is as following:
    1、Hot skew rolling steel ball has all advantages of steel, Becoming high quality grinding steel ball after heat treatment.
    2、Efficient production,large production,skew rolling steel ball production mechanization,high degree of automation, No manual operation of production.
    3、Stable quality,hardness and hardenability good,metallographic structure densification, Grain size small, Wear-resisting performance is good, Its abrasion is half of the casting ball,Impact toughness is as high as 12-35J/cm2 , Broken rate is less than 0.1%
    4、Low energy consumption, non-pollution, The intensity of labor is low, The production cost is low, in the long term,Casting ball will inevitably be replaced by skew rolling steel ball.

The Ball Mill Filling Ratio Automatic Detection System

The Ball Mill Filling Ratio Automatic Detection System

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)
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Ball mill is the main equipment of ore dressing process, and it is widely used in mining, metallurgy, building materials, refractory, cement, chemical and thermal power industry.
With the rapid development of all walks of life, the ball mill is used more and more widely. There are many factors affecting the working effect of ball mill, and the grinding ball filling ratio is a major parameter of grinding of ore. In the grinding process, grinding mill is mainly rely on the role of media to complete the grinding task, and whether the medium filling rate is reasonable or not is the first factor to affect productivity. The accurate detection can make the mill capacity and energy efficiency improved obviously on the mill ball loading rate. For ball mill, load detection is usually to be stopped after the mill, open mill shell manhole cover and people entering the mill to obtain measurement and calculation of the filling factor. 
If these works are not consistent with the maintenance plan of mills, it will seriously affect the technical and economic index of mill. In the working process of the ball mill, the adding of balls is carried out in advance according to the work plan and this plan is known to be grinding material medium consumption index compiled. Due to the raw material of no stable mechanical properties and medium quality, and the crushing medium unit consumption in the wide range is also changing, which may not be stable. Therefore, in the long time of mill work according to the original plan to maintain the simplified inside medium rate value will be difficult, the result is not the medium rate inadequacy is medium filling rate is too high. Because the major impact of machine inside medium rate of mill power and productivity, the actual production of medium filling rate is difficult in dynamic stability. Therefore, on one hand, according to the dynamic wear medium make the timely, scientific and reasonable way of adding, so that to make medium filling inside the mill rate stable at a reasonable level; on the other hand, it is to find the dynamic parameters of the medium filling rate regular and accurate as well as simple and convenient measuring method to guide the media timely supplement, and the mill power and productivity to maintain high level operation. The main problem of artificial detection is to detect the mill load shut down, and this will affect the continuity of production and product quality, reduce the operation rate of the instability of the mill, and mill frequent startup will also lead to the increase of power consumption. Therefore, the research on a high degree of accuracy and good cost performance of mill medium filling rate automatic detection is very important.

The history of the heat treatment of steel ball

The history of the heat treatment of steel ball

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)
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The history of the heat treatment of steel ball: in 1863, the British metallographer and geologists showed six different microstructure of steel under a microscope, which proved that during heating and cooling, there will be an organizational change in steel, the steel at high temperature phase in the quenched into a hard phase. Allotropic Frenchman Osmond established the theory of iron, and the British Austen first formulated the iron carbon phase diagram. The above two creations initially lay the theoretical foundation for the modern heat treatment process. At the same time, people also study the protection methods of metal in the heating process of metal heat treatment, in order to avoid metal’s oxidation and decarburization in the heating process.
From 1850 to 1880, there had a series of patents for the application of various gases (such as hydrogen, carbon monoxide gas, etc.) to protect the heating. From 1889 to 1890 the British Lake accessed the patent of the bright heat treatment of a variety of metal. 
Since twentieth Century, the development of metal physics and the transplantation application of other new technologies make the metal heat treatment process get greater development. A significant development was in 1901 ~ 1925, application of gas carburizing rotary furnace in industrial production; in 1930s dew point potential difference meter appeared, which can control the carbon potential of furnace atmosphere, and later people developed ways to further control the carbon potential atmosphere furnace using carbon dioxide infrared instrument; in 1960s heat treatment technology made the use of plasma field and developed ion nitriding, carburizing process; the application of laser and electron beam technology made the metal gained new surface heat treatment and chemical heat treatment method.

How to make an accurate analysis of the market situation of coal grinding machine steel industry development

How to make an accurate analysis of the market situation of coal grinding machine steel industry development

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)
Email: info@skewrollingmill.com 

For accurate analysis of the market situation of coal grinding machine steel industry development,grinding balls it requires a combination of industry’s supply and demand relations changes over the years and predict and analysis ball mill industry’s development trend with the combination of qualitative and quantitative. So as to provide authoritative, sufficient, reliable decision basis for the enterprise development strategy, investment decision-making and enterprise management.
We need to make a survey and analysis of the following contents:
Induction of the model of industry chain, definition of industry chain, steel ball definition of industry chain, content of industry chain, industry chain type and industrial chain model.
"Potter's five forces model” analysis of ball mill industry environment: the existing competition among enterprises, potential entrants, substitute threat analysis, analysis of the bargaining power of suppliers and the bargaining power of customers.

Environment analysis of the development of coal machine grinding ball market; ball rolling strength analysis of the development of the industry, weak analysis of the development of the industry development, development opportunity of the industry, development threat of the industry.

How to make an accurate analysis of the market situation of coal grinding machine steel industry development

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)
Email: info@skewrollingmill.com 

For accurate analysis of the market situation of coal grinding machine steel industry development,grinding balls it requires a combination of industry’s supply and demand relations changes over the years and predict and analysis ball mill industry’s development trend with the combination of qualitative and quantitative. So as to provide authoritative, sufficient, reliable decision basis for the enterprise development strategy, investment decision-making and enterprise management.
We need to make a survey and analysis of the following contents:
Induction of the model of industry chain, definition of industry chain, steel ball definition of industry chain, content of industry chain, industry chain type and industrial chain model.
"Potter's five forces model” analysis of ball mill industry environment: the existing competition among enterprises, potential entrants, substitute threat analysis, analysis of the bargaining power of suppliers and the bargaining power of customers.

Environment analysis of the development of coal machine grinding ball market; ball rolling strength analysis of the development of the industry, weak analysis of the development of the industry development, development opportunity of the industry, development threat of the industry.

Beneficiation ball manufacturers’ introduction: overview of Iron ore beneficiation process and the main process technology

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)Youtube https://www.youtube.com/channel/UCGZ1mhhPeyBshSf8slJ6BFg/videosPinterest https://www.pinterest.com/skewrollingmachFacebook  https://www.facebook.com/skewrollingmachineEmail: info@skewrollingmill.com China's domestic grade of magnetite ore are low, mostly around 10%, grinding balls while the market for iron concentrate grade must reach about 65%. So it is necessary to adopt the necessary processing equipment, processing the low-grade iron ore to high grade iron concentrate.The technology of iron ore beneficiation process can be divided into dry selected section and wet selected section. Many iron ore processing plant usually separate dry selected section and wet selected section, someone set the dry selected section and wet selected section together. Whatever the method, the goal is to achieve maximum efficiency.The difference of iron ores’ physical properties is big, among which is mainly the hardness difference is extremely obvious. So it should use special wear-resistant steel ball produced by skew rolling mill to maximize the efficiency of mineral processing. No matter what type of low grade magnetite, we should use crushing , crushed iron ore with low grade to a certain granularity range, then use the dry separation equipment, primary processing. In general, the smaller of low grade iron ore crushing particle size, the higher separation efficiency of dry separation machine, the longer and higher of the taste after rough processing. We use 10% magnetite as an example, usually in the crushing size reached 5mm, can be upgraded to 17% by dry taste.Grinding Ball Development If the particle size is about 10mm, dry taste will drop to around 15%. On the other hand, up to 3mm or even 1mm, dry taste will be higher. However, taking into account the cost control and the economy of the crushing equipment, we recommend suitable granularity control in 5~10mm. There are many types of iron ore crushing equipment, so it is an important technology process to select reasonable crushing technology and equipment.The study of a large amount of data shows that the increase of forged steel ball and other kinds of grinding medium loading capacity cannot improve grinding efficiency. The study found that the most appropriate loading of grinding body should be 95% of the rated load of ball mill steel ball. To strengthen the cement mill ventilation and sealing system, reducing air leakage, proper ventilation, you can discharge the mill in the cement powder, reduce crushing, and discharged water vapor, reduce the ball. In addition, the ball mill is connected with lifting machine, powder selecting machine and other production equipment to improve the sealing, lock the wind effect. Reduce grinding temperature grinding system, strengthen the cooling grinding system with high temperature, part of gypsum dehydration effect of cement quality, processing equipment increase the fine powder electrostatic adsorption for ball mill, ball grinding paste increased, the phenomenon is serious, therefore, you should pay attention to the surface cooling system. You should also do regular clearance and timely relief. In the mineral processing production process, grinding and classification is a very important stage.

Whether the forged steel ball is more suitable for wet grinding or dry grinding?

Whether the forged steel ball is more suitable for wet grinding or dry grinding?

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)
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With the development of wet ball mill, advantage of forged steel ball is more and more obvious. Compared with casting ball, forging steel ball has all the advantages of steel. After heat treatment, it becomes ball milling of high quality. Suchuang Machinery Equipment Co., Ltd is a professtional manufacturer of automatic production line, which reduce the production cost and improves the production efficiency. 
The ball mill can be divided into dry ball mill and wet ball mill according to the material’ wet and dry.
Dry ball mill has been widely used in cement, silicate products, new building materials, refractory materials, chemical fertilizer, black and non-ferrous metal processing and the glass ceramic production industry. In 1950s, about 70% are dry ball mill in foreign countries. With the progress of technology, as well as to the energy saving and environmental protection have become increasingly demanding, wet ball mill is developing rapidly, which now accounts for more than 75% of the total of ball mill.

Hot skew rolling mill industry standard steel ball black (YB/T 091-2005) specializing in the production of various specifications of hot skew rolling mill. The ball diameter range of Φ 20- Φ 70mm. Skew rolling mill is used in hot rolling round steel of various chemical ingredients. Hot rolled steel ball production process is as follows:
1.After testing, round steel bar is sheared into steel ball billet according to the specified length.
2.Before skew rolling, steel ball billet is in continuous heating furnace to be heated to a suitable temperature.
3.After fed into the skew rolling mill, red hot billet rotate and move between the 2 special spiral groove roller, and is continuously skew rolled into a ball.Milling and grinding media Each ball mill per minute can roll 60-360 balls.
4.The rolling red hot ball immediate access to online heat treatment equipment, which is special design of the factory to under quenching and tempering heat treatment, so that the ball was very high and even hardness. 
5.Qualified products are sent to the finished goods warehouse and packed to the customer.

Difference between forged steel ball and casting steel ball

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com)
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Now the mill steel ball on the market can be divided into two types according to the manufacturing process technology: Casting and forging. But the wear degrees are not the same. Due to crushing, ball need good wear resistance and toughness, which usually made of alloy steel, high manganese steel, cast iron and other materials and with forged or casted once-forming method. It is more economic with the corresponding heat treatment process technology. Mill steel ball can be divided according to the process technology and materials: 1. Forged steel ball: low carbon alloy steel ball, medium carbon alloy steel, high manganese steel, rare earth chromium molybdenum alloy steel ball; 2. Casting steel ball: characteristics low chromium cast iron balls, medium chromium cast ball, high chromium cast iron grinding ball. Now on the market which ball is best? Now let's analyze: 1. Forged steel ball: good surface quality, good impact resistance, strong toughness, good wear resistance and it is not easy to be broken and lost round. The metal heating temperature up to 1050 ℃ (plus or minus 50 degrees), use of metal billets forging machinery pressure, the processing method of plastic deformation in order to obtain a certain mechanical properties.

It has a certain shape and size of forging. Forging (forging and stamping) is one of the two major components. By forging it can eliminate the as-cast porosity and defects of metal in the smelting process and the microstructure is optimized. At the same time, as it preserves the metal flow and integrity, Grinding Cylpebs the mechanical performance generally is better than forgings castings with the same materials. An important part of high load and harsh working conditions related machinery, in addition to relatively simple shapes and can be rolled plates, profiles or welded parts, mostly use forgings. In addition, forged steel ball to wear must choose the most wear resistant material, such as the national standard 60Mn, 65Mn, materials of high wear-resistant alloy steel or products researched and developed by some independent company. We adopt a national oversize steel production of steel, which is also a kind of materials and it is unequal referring the quality in different steel production and forgings quality 80% depends on the quality of the materials, such as high manganese steel, good impact resistance, Forging steel balls strong toughness, good wear resistance and not easy to be broken. Because of cheap price, economic and durable characteristics, forged steel ball is favored by the majority of users, such as the international mining: giant Rio Tinto, BHP Billiton, Anglo gold all use of forged steel ball.

Difference between casting steel ball and forging steel ball by skew rolling machine

Suchuang Machinery Equipment Co., Ltd(http://www.skewrollingmill.com) for producing skew rolling machine
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Now the mill steel ball on the market according to the manufacturing process can be divided into two types:casting steel ball and forging steel ball, but the wear degree are not the same. Due to crushing, ball need good wear resistance and sufficient toughness and not breaking ball. According to the manufacturing process and materials, it can be divided into:
1.Casting steel ball: low chromium steel, medium chromium steel, high chromium steel and super high chromium steel (Cr12%-28%).
2.Forging steel ball: low carbon alloy steel, medium carbon alloy steel, high manganese steel and rare earth chromium molybdenum alloy steel ball:
Now which kind of steel ball is the best? Now let’s analysis:
1.High chromium steel quality index: chromium content is more than 10%, the carbon content in 1.80%-3.20% are called high chromium steel, the requirements of the national standard of high chromium ball hardness (HRC) must be ≥ 58, AK ≥ 3.0J/ cm impact value of 2, if the hardness of high chromium high temperature quenching + tempering treatment must be used (there are oil quenching wind, water quenching, quenching solution and other domestic high chromium steel quenching), such as detection of hardness (HRC) below 54 indicates high chromium steel without quenching.
2.Low chromium steel quality index: with 0.5% ~ 2.5%, the carbon content in 1.80%-3.20% are called low chromium steel, the requirements of the national standard low chromium steel hardness (HRC) must be≥ 45, AK ≥ 1.5J/ cm impact value of 2,Rolling Ball in order to ensure the quality of low chromium steel ball high temperature tempering or vibration aging treatment (in order to eliminate casting stress, such as the objective) of steel ball surface is dark red to indicate that the product has been the high temperature tempering treatment, such as the steel ball surface is the metal color indicates the product without tempering.
3.Forged steel ball quality index: with 0.1% ~ 0.5% (forged steel ball without chromium), the carbon content below 1% and the steel ball with high temperature forging manufacturing, some forged steel ball surface hardness (HRC) ≥ 56 (although it can achieve more than quenching layer only 15 mm or so), steel ballbecause of forged steel ball material harden ability core hardness is generally only 30 degrees. Under normal circumstances, forged steel ball by water quenching treatment, the forged steel ball broken rate is high.
4.Comparison of wear resistance: super high chromium steel > high chromium steel > medium chromium steel ball > low chromium steel > forged steel ball.
Elements of wear-resistant steel ball:
Chromium content is 1% - 3% and the hardness HRC ≥ 45. This standard of wear-resistant steel ball is called low chromium alloy cast ball. Low chromium balls adopt the intermediate frequency electric furnace, metal mold or sand casting mode. Its performance is suitable for some metallurgical mines, slag and other industries, which are of low grinding accuracy and low consume.
Wear-resistant steel ball’s chromium content is 4% to 6% and hardness HRC ≥ 47. This standard is called the multi-element alloy balls, which is higher than low chromium steel referring to strength and wear resistance and. Chromium content is 7% - 10% and the hardness HRC ≥ 48 is chromium alloy cast balls, whose performance and other aspects are higher than multiple alloy steel ball high. 
Wear-resistant steel ball’s chromium content ≥ 10% - 14% and the hardness HRC ≥ 58. High chromium alloy cast balls is a kind of wear-resistant steel ball with high applicable rate and good cost performance in current market. Its application range is wide and is used in metallurgy, cement, thermal power, flue gas desulfurization, magnetic materials, chemical, coal water slurry pump; ball therefore, superfine powder, slag, fly ash, calcium carbonate and quartz-sand industry. Its function is highlighted especially in the cement industry, which can increase production and reduce energy consumption.