Metal Heat Treatment Process Grinding Ball

• Material: Chrome
• Content: 10%-28%
• Usage: Construction, Machinery, Chemical, Petroleum, Grind, Refractory Material
• Processing Type: Casting
• Size: 10mm-140mm
• Color: Black
• Model NO.: 10mm-140mm
• Customized: Customized
• Hardness: 50-65 HRC
• Heat Treatment: Oil Quenching
• Broken Rate: <0.5%
• Moder No.: Zqcr10
• Advantage: Good Wear Resistant & Loog Service Life
• Transport Package: Durm or Bag
• Specification: High chrome grinding media
• Trademark: chengda
• Origin: China
• HS Code: 7325910000
• Production Capacity: 60000 Tons

Product Description

 

 

Product Description

 Grinding ball
 

Chrome grinding ball is mainly used inthermal
power,mining,building materials and other industries
by crushing and grinding materials, in the use of the process,the ball will further improve its surface hardness,wear resistance.
while improving the mill production capacity,high wear resistance,also maintain performance over long periods of time.
It not only improves the grinding efficiency,reduces the time of stopping the grinding machine for selection and adding of the balls,but also extends the clearance 
cycle,reducesthe labor intensity,and has important
significance for improving the output of themill,
ensuringthe quality of the abrasive,and reducing the consumption of power consumption and the grinding media.
Chengda can provide diameter 4.6mm-140mm and the chrome content ranges from 0.8%-28%,which can be customized according to different needs of users.
 

Steel forging 
 

Steel forging is a kind of wear-resistant material, the chemical composition is similar to the grinding ball,steel forging is divided into double plane and bispherical(capsule type),mainly used in the ball mill fine grinding silo,it can withstand high frequency of strong impact force and friction,with fine grinding effect,high wear resistance,low crushing rate characteristics,effectively reduce production costs.

 

 

Product Parameters

Chromiun Alloy Grinding Steel Balls Chemical Components

Designation	Chemical Composition(%)
	C	Si	Mn	Cr	Mo	Cu	Ni	P	S
ZQCr26	2.0-2.6	≤1.0	0.3-1.5	23.0-27.0	≤1.0	≤1.0	≤1.0	≤0.06	≤0.06
ZQCr20	2.0-2.6	≤1.0	0.3-1.5	18.0-23.0	≤1.0	≤1.0	≤1.0	≤0.06	≤0.06
ZQCr15	2.0-2.6	≤1.0	0.3-1.5	14.0-18.0	≤1.0	≤1.0	≤1.0	≤0.06	≤0.06
ZQCr12	2.2-3.0	≤1.0	0.3-1.5	10.0-14.0	≤1.0	≤1.0	≤1.0	≤0.06	≤0.06
ZQCr8	2.2-3.0	≤1.0	0.3-1.5	7.0-10.0	≤1.0	≤0.8	≤1.0	≤0.06	≤0.06
ZQCr5	2.2-3.2	≤1.0	0.3-1.5	4.0-6.0	≤1.0	≤0.8	≤1.0	≤0.08	≤0.08
ZQCr2	2.2-3.2	≤1.0	0.3-1.5	1.0-3.0	≤1.0	≤0.8	≤1.0	≤0.10	≤0.10
ZQCADI	3.3-3.9	2.4-3.0	1.4-1.9	0.2-0.5	≤0.5	0.1-0.5	0.1-0.5	≤0.05	≤0.05

Chromium Alloy Grinding Steel Balls Specification

Specification (mm)	Weight of Each Ball (Kg)	Pcs/ton	T/m³
φ15	0.017	58824	4.94
φ17	0.024	41667	4.91
φ20	0.037	27027	4.89
φ25	0.070	14286	4.87
φ30	0.110	9091	4.85
φ40	0.257	3891	4.76
φ50	0.500	2000	4.70
φ60	0.867	1153	4.66
φ70	1.070	729	4.62
φ80	2.050	487	4.60
φ90	2.900	345	4.58
φ100	4.000	250	4.56
φ110	5.300	188	4.55
φ120	6.800	147	4.54
φ125	7.750	129	4.52
φ130	8.740	114	4.50

 
Grinding Forging Chemical Compoents
 

Designation	Chemical Compositions(%)
	C	Si	Mn	Cr	Mo	P	S
ZDCr26	2.2-3.0	≤1.0	0.3-1.0	24.0-30.0	≤1.0	≤0.10	≤0.06
ZDCr23	2.2-3.0	≤1.0	0.3-1.0	22.0-24.0	≤1.1	≤0.10	≤0.06
ZDCr20	2.2-3.0	≤1.0	0.3-1.0	18.0-22.0	≤1.0	≤0.10	≤0.06
ZDCr17	2.2-3.0	≤1.0	0.3-1.0	16.0-18.0	≤1.0	≤0.10	≤0.06
ZDCr15	2.2-3.0	≤1.0	0.3-1.0	14.0-16.0	≤1.1	≤0.10	≤0.06
ZDCr12	2.2-3.0	≤1.0	0.3-1.0	10.0-14.0	≤1.0	≤0.10	≤0.06
ZDCr8	2.2-3.2	≤1.0	0.3-1.5	7.0-10.0	≤1.0	≤0.10	≤0.06
ZDCr5	2.2-3.2	≤1.0	0.3-1.5	4.0-6.0	≤1.0	≤0.10	≤0.10
ZDCr2	2.2-3.2	≤1.0	0.3-1.5	1.3-3.5	≤1.0	≤0.10	≤0.10
ZDCADI	3.3-3.9	2.4-3.0	2.4-2.9	0.2-0.5	≤0.5	≤0.06	≤0.05

Grinding Forging Specification
 

Specification (mm)	Weight of Each Ball (Kg)	Pcs/ton
φ8×10	0.0039	255056
φ10×12	0.0074	136030
φ12×14	0.0120	80970
φ14×16	0.0190	52052
φ16×18	0.0280	35424
φ18×20	0.0400	25191
φ20×25	0.0610	16324
φ25×30	0.1150	8706
φ30×35	0.1930	5182
φ35×40	0.3000	3331
φ40×45	0.4400	2267
φ45×55	0.5711	1751
φ55×60	0.8611	1161

 

Hot Selling Product

Grinding Balls Series

 

   

Designation	HRC	AK(J/cm²)	Microstucture	Falling Times
ZQCr28	≥58	≥4.8	M+C	≥18000
ZQCr26	≥58	≥4.8	M+C	≥18000
ZQCr20	≥59	≥4.8	M+C	≥18000
ZQCr15	≥60	≥4.8	M+C	≥18000
ZQCr12	≥60	≥4.5	M+C	≥18000
ZQCr8	50-65	≥3.5	P+C/M+C	≥12000
ZQCr5	49-62	≥3.0	P+C/M+C	≥12000
ZQCr2	≥48	≥3.0	P+C	≥10000
ZQCADI	55-60	≥10	B+Fe	≥25000
C-Carbide  M-Martensite  P-Pearlite  B-Bainite  Fe-Ferrite

Steel Forging Series

 

 

Designation	Surface HRC	Core HRC	Microstucture
ZDCr28	≥62	≥62	M+C
ZDCr26	≥62	≥62	M+C
ZDCr23	≥62	≥62	M+C
ZDCr20	≥62	≥62	M+C
ZDCr17	≥62	≥62	M+C
ZDCr15	≥62	≥62	M+C
ZDCr12	≥62	≥62	M+C
ZDCr8	50-55	50-55	P+C/M+C
ZDCr5	50-55	50-55	P+C/M+C
ZDCr2	≥48	≥47	P+C
ZDCADI	55-60	55-60	B+Fe
C-Carbide     M-Martensite  A-Ferrite   B-Bainit    Fe-Ferrite

Liner Series
 

Production Equipment

Fully Automatic Production Line

Main Production Equipments

1. 1.5 tons medium frequency induction furnace (4 SETS)

2. 2.0 tons medium frequency induction furnace (4SETS)
3. 1.0 tons medium frequency induction furnace (3 SETS)

       4. Automatic iron coated sand casting production line (3SETS)

Automatic Quenching And Back Heat Treatment Production Line

High chromium grinding medium heat treatment process:
The as-cast microstructure of high chromium alloy white cast iron is susaturated austenite+flake or block chromium-containing eutectic carbide,which is coarse and distributed in intermittent network.In order to give full play to the anti-wear properties of high chromium alloy white cast iron, the matrix structure must be changed by heat treatment,and the austenite is converted into martensite to improve the hardness of the matrix and thus improve the resistance. Currently commonly used high chromium series grinding medium heat treatment process has the following three kinds:
high temperature quenching+tempering
Isothermal quenching process
Subcritical treatment process
Automatic Microsphere, Micro-Forging Production Lineh
 

 Workshop Environment


Worker's Operation

Quality Assurance

Quality Assurance

(1)Strengthen the supply and quality control of raw materials
(2)Comprehensive digital quality management
(3)Strictly implement quality control procedures
(4)Multilink detection
           Incoming material inspection
          Surface hardness testing
          Core hardness testing
          Chemical composition detection
          Impact detection
          Customer's other requirements testing


 

Packaging And Transportation

Packaging And Transportation

(1) Balls can be provided in 1 ton flexible container bag with secure lifting straps. Bags can be strapped onto wooden pallets as      per demand.
(2) Balls can be provided in steel drums, 850- 930KGS/DRUM. Drums can be strapped onto wooden pallets as per demand.
(3) We have long-term logistics partners to meet the different trade terms of sea or rail transport.