| Prod Model: |
20-100mm |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Certificate: |
ISO9001, CE |
| Ball Color: |
Black |
| Application: |
Ball Mill |
| Manufacture Time: |
10 Days |
| Spare Parts Supply: |
Long Term |
| After Sale Service: |
Long Term |
| Processing Type: |
Rolling Type |
| Material: |
Casting Steel |
| Content: |
Chrome |
| Size: |
20-100mm |
Product Description
High Quality Ball Mill Grinding Media Steel Ball
High Quality Ball Mill Grinding Media Steel Ball Product Introduction:
Casting steel ball (casting grinding ball) is made of the scrap steel, scrap metal and other waste scrap which is melted by the heating of intermediate frequency electric furnace. In the melting process, the amount of precious metal alloy (such as iron, manganese, vanadium etc.) is added into the furnace for chemical composition. Then pour the qualified molten iron into the production line mold of steel ball when temperature of molten iron reaches more than 1550ºCand the molten iron meets other technology requirements.
High Quality Ball Mill Grinding Media Steel Ball-Classification:
High chromium alloy casting ball, medium chromium alloy casting ball, low chromium alloy casting ball
Application of High Quality Ball Mill Grinding Media Steel Ball
Casting steel ball is mainly used in cement plant, chemical plant, power plant, quartz sand factory, silica sand factory and other dry grinding field.
Advantages of High Quality Ball Mill Grinding Media Steel Ball
High performance and low cost, wide application range, especially in cement industry as the representative of the dry grinding field
High Quality Ball Mill Grinding Media Steel Ball-Production Process Flow:
Inspection of raw materials----Materials ratio---Heating and melting of Intermediate frequency furnace---Pouring into mold--- Quenching----Tempering----Testing---Package
Quality Detection and Standard of High Quality Ball Mill Grinding Media Steel Ball
1. The standard chemical components of casting steel ball.(We can also produce the steel ball according to the requirement of customers) |
Code |
Chemical Composition(Mass Fraction),% |
C |
Si |
Mn |
Cr |
Mo |
Cu |
V |
Ti |
P |
S |
ZQCrG1 |
2.0-3.5 |
≤1.0 |
0.5-2.5 |
10-16 |
≤1.0 |
≤1.0 |
≤0.3 |
≤0.15 |
≤0.1 |
≤0.1 |
ZQCrG2 |
16-22 |
ZQCrG3 |
22-28 |
2. Nominal diameter, allowable deviation, the maximum diameter and the minimum diameter |
Nominal diameter |
20 |
25 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
Allowable deviation of diameter |
+2.0 -1.0 |
+2.0 -1.0 |
+3.5 -1.0 |
Difference of the maximum diameter and the minimum diameter |
≤1.8 |
≤2.4 |
≤3.0 |
≤3.6 |
≤4.2 |
≤4.6 |
3. Mechanical Property of casting steel ball |
Code |
(HRC)Surface hardness |
Impact test Ak |
Impact fatigue life(N) |
ZQCrG1 |
≥58 |
≥3 |
≥10000 |
|
ZQCrG2 |
ZQCrG3 |
Notes:
1. The ball with diameter 100mm is used in impact fatigue test; the test height is 3.5m;
the impact times of the ball with other diameter are calculated by this formula, Nx=N*100/D, N is time.
2. The impact toughness and impact fatigue life index is not treated as delivery basis.
|
Surface Quality |
1. It is not allowed that crack, obvious porosity, slag inclusion, shrinkage, cold insulation, wrinkled skin and other casting defects exist on the surface. |
2. Allowed defects on ball surface |
Nominal diameter |
Allowed defects limitation mm |
Extra part of Gate |
Sand area |
Residual Side |
Depth |
Single hole area |
Total area |
20-35 |
1.5 |
16 |
1.5 |
1.5 |
12 |
25 |
40-60 |
2.0 |
25 |
2.0 |
2.0 |
16 |
35 |
70-100 |
2.5 |
36 |
3.0 |
2.5 |
20 |
50 |
Internal quality |
| It is not allowed that crack, obvious porosity, slag inclusion, shrinkage, cold insulation, wrinkled skin and other casting defects exist on the section which goes through center of gate and sphere. |
Test Method and Rules |
1. Impact test:
cutting 10mm×10mm×55mm part through gate in ball as sample |
2. Rockwell hardness specimen preparation:
The surface of the ball takes the test after grinding to platform, and the grinded thickness is 1.5 - 5mm. |
3. Chemical composition test:
when the volume smelting furnace more than 0.5 tons, we should check the chemical composition furnace by furnace;
when the volume smelting furnace not more than 0.5 tons, we should check the chemical composition once per shift.
Once there is one furnace unqualified, we need to sample double furnace for test.
If there is still one not qualified, this branch of balls is unqualified. |
4. Surface hardness test:
sampling from different location of each batch of heating furnace, the number of the ball≥ 5.Once there is one unqualified, we need to sample double balls for test. If there is still a ball not qualified, this branch of balls is unqualified. |
5. Internal quality detection:
we sample 1 largest size casting iron grinding ball in 100 tons the same type cast iron grinding ball of each continuous production.
Once there is one unqualified, we need to sample double balls for test.
If there is still a ball not qualified, this branch of balls is unqualified. |
Zhengzhou Sunshine Machinery Co., Ltd. is one leading company that designs the projects, manufacturing, export and install the oil&fats equipment to customers all over the world.
We have 368 staffs including more than 42 professional technical personnel. Company organizations are: Engineering technology department, marketing services dept., integrated management dept., financial management dept., machinery manufacturing center and the research and development center and other departments. We have 25 engineering design staff. All design are by computer operations, and passed the ISO9001-2000 quality management system certification forming a set of scientific research, production and development together.
Scientific and technological innovation, excellent quality, customer satisfaction is our consistent business principle, service is company's long-term commitment. Together, let us hand in hand for the development of grain and oil industry work together to create a better future!
In recent years, the company has completed hundreds of projects involving the exploitation of oil pretreatment, extraction, oil refining, animal oil refining processing, small varieties of oil deep-processing, bio-diesel and other technologies, the projects cover more than 20 domestic provinces and cities, autonomous regions and export to South Africa, Ethiopia, South Asia, Pakistan, Russia, Peru, Argentina and other dozens of countries, especially in Uzbekistan, the Sunshine Group finished 18 sets of edible oil projects. Our proudct well received by customers at home and abroad.
VISION
To lead with quality, reliability and excellence in mining & construction by steadily focusing on perfect planning, precise engineering, latest technology & modern design mining industry & building material field with a commitment to give a better solution and service.
MISSION
To innovate, design, manufacture & deliver products of extreme quality & durability, which conform to customer requirements providing longtime satisfaction & building strong business relationships.
VALUES
To gain excellence & customer satisfaction through Transparency, Commitment, Trust, Integrity, Quality & Humanity.
