The forged steel grinding ball is excellent in surface quality, toughness, and resistance to impact and abrasion. It won't crack and lose circularity easily. The forging and stamping method that we use is that heating the metal until the temperature reaches 1050ºc (±50 ºc), and utilizing the metalforming machinery to exert pressure onto the metal blank, then the metal blank coming out with plastic deformation to become the forge piece with certain mechanical properties, shape and dimension.
The forging can eliminate the defects such as porous as-cast microstructure generated during the smelting process of the metal, and optimize the microstructure. Meanwhile, as a result of the preservation of the complete metal flow line, the forge piece has superior mechanical performance to the casting with the same material. The forged steel grinding ball must use the super wear resistant material to ensure the abrasion resistance, such as the high-carbon steel materials compliant with the national standard, or the high wear resistant alloy steel material researched and developed independently by some companies themselves.
Currently, most of the enterprises utilize the round bar steel rolled by the steel mill as the steel grinding rod directly. The round bar steel has very low hardness of only 12HRC to 25HRC, and the internal stress, leading to broken damage easily and low wear resistance property. Meanwhile, the round bar steel comes with some defects such as loose and not compact internal structure. Just because of that, using the round bar steel for grinding would cause a series of problems such as large wear, easily bending, breaking, winding, two tapering ends, low productivity, failing to reach the expected qualified rate, heavy workload of the follow-up magnetic separation process, etc.
Features
1.The wear resistant effect of the new-type alloy wear resistant steel grinding rod is 1.5 to 2 times stronger than that of the rolled steel bar. Marked by excellent wear resistant property, the product can save a lot of cost for the customer.
2.It is manufactured by using the latest production method. The dimension and the specification can be adjusted in accordance with the requirements of the customers. The largely improved flexibility can save the unnecessary waste.
3.The product can serve for a longer time, economize the production cost and mitigate the labor intensity of the workers. Moreover, it eliminates the need for stopping the rod mill to add the new steel grinding rod every day, which is conducive to largely enhancing the productivity.
Our domestic clients are full of praise for the product. Our product order process would follow the steps below.
1.Communicate with the customer to understand the requirements of customers to the product regarding length, diameter, quantity, etc.
2.Order the raw material from the steel mill.
3.Carry out the inspection for the incoming raw material.
4.After being inspected to be qualified, the raw material is processed with professional quenching and high temperature tempering, heat treatment, straightness adjusting, and others by using the professional equipment and technology.
5.Inspect the finished steel grinding rod about the hardness, impact value, drop test, etc.
6.After being approved, all the finished products are stored into the warehouse for delivery.
name of parameter parameter values unit
Turntable diameter 2500 mm
Casting maximum length 300ï½?600 mm
Mold rotation diameter �¦420 mm
Casting maximum diameter �¦120 mm
Rotation power of motor 4 kw
Main machine power of motor 5.5 kw
Number of station 8
Speed of mold 0-1600 rpm
Total power of the machine 55 kw
Item:Â NCR Paper / Carbonless Copy Paper
Color : White /Pink / Yellow / Green / BlueÃ?Â
Weight: 45 gsm, 47 gsm, 50 gsm, 52 gsm, 55 gsm, 70 gsm, 80 gsm or customized.
Material: 100% virgin pulp, pure wood pulp.
Type : CB/CFB/CF� (Coated Back / Coated Front and Back / Coated Front)
Impression: Blue image, black image.
Package: In sheet or rollÃ?Â
Size : 42 X 53 cm, 61 X 86 cm, 65 X 92 cm,70 X 100 cm,77 X 110 cm, 80 X 80 cm, 142 cm X 142 cm or customized
787 X 1092 mm, 889 X 1094 mm or customized
Character: No paper scrap, no dust, no bisphenol A, no pungent odor
563 Cast Iron Boring Scrap Suppliers
Short on time? Let Cast Iron Boring Scrap sellers contact you.
Material
NVA,NVD,A,A32,,A36,AH32,AH36,B,16MnL,D32,D36,DH32,DH36,EH32,EH36
Q195, Q235, Q235B,Q345,
10-50#,16Mn,20Mn,35Mn,45Mn,50Mn,20Mn2,35Mn2,45Mn2.
15CrMo,35CrMo,42CrMo,20CrMo,12Cr1MoV,27SiMn,60Si2Mn,20Cr,40Cr
15GrMoG , 10GrMo910 , 12Gr2MoG , 12Gr1MoVG, 1Gr5Mo,1Gr9Mo ,P11, T11 , T91 , T22 , P22 , P5 , P9 , WB36
Standard
ASTM B498(Steel Core Wire For ACSR); GB/T 3428(Over Stranded Conductor or Aerial Wire Strand ); GB/T 17101 YB/4026(Fence Wire Strand); YB/T5033(Cotton Baling Wire Standard)
Diameter
0.2-6mm
Tensile Strength
350-550MPA
Delivery terms
FOB,CFR,CIF,CNF etc.
Price Term
T/T,L/C
Lead time
Small batch can be in 7 days, depending on the quantity
Remark
Specific requirement of alloy grade,temper or specification can be discussed at your request
Our cast iron grinding balls can be divided into three categories including the high chromium type, medium chromium type and the low chromium type.
1. The quality index of the high chromium type
The chromium content of the high chromium type product is greater than or equal to 10.0%. And the carbon content is between 1.80% and 3.20%. It is required by the national standard that the hardness of the high chromium type product must be no less than 58hrc, and that the impact value should be greater than or equal to 3.0j/cm. This type of product must go through the hot quenching and the tempering treatment to come up to the hardness.
Currently at home, there are two quenching methods for this type of product including oil quenching and wind quenching. If the tested hardness of this type of product is below 54hrc, then it shows that the quenching treatment is omitted.
2.The quality index of the medium chromium type
The medium chromium type cast iron grinding ball is defined as the chromium content ranging from 3.0% to 7.0%, and the carbon content coming between 1.80% and 3.20%. Its impact value should be no less than 2.0j/cm. . The national standard requires the hardness of this type of product should be greater than or equal to 47hrc. For ensuring the quality, the medium chromium type product should be processed with high temperature tempering to eliminate the casting stress.
If the surface of the steel ball assumes the dark red color, it proves that the steel ball has been processed with high temperature tempering. If the surface of the steel ball still comes with the metal color, then, we can judge that the steel ball doesn’t go through the high temperature tempering treatment.
This type of forging manipulator is much popular in forging processes together with the smith hammer. Mainly five motions can be implemented:tong clamping/loosening,tong continuous turning in 360°. around its axle, tong front lifting, tong rear lifting, carriage running along the rails.
Made from plate and thread rod
Plate: 200x200x10mm plate (250 Grade steel)
Thread rod: M36X200 Thread (4.8 Grade)
Surface: Electro-galvanized or plain steel
Notes: OEM service is available, different materials and specifications can be customized according to your demands.
Steel plate and round pipe are welded into T - shaped structure.
The z-structure is made of 3/8 "thick steel plates.
Hot-dipped galvanized per ASTM A153 surface treatment or black steel.
Notes: OEM service is available, different materials and specifications can be customized according to your demands.
Bracket Material: ASTM A36, Made of three different thickness of plates.
Cap Plate: ASTM A572 Grade 50.
Bracket Hardware: (2)-3/4X16 Long Grade B7 All thread Rod with Nuts.
All welding to be in accordance with AWS D1.1.
Brackets and Caps are all available as either plain steel or Hot-dipped galvanized in accordance with ASTM A153.
Bracket Hardware is provided as Electro-zinc plated in accordance with ASTM B633.
Notes: OEM service is available, different materials and specifications can be customized according to your demands.
The foundations resting on unstable soil may shift and settle. To correct this problem, helical piers are screwed into stable soils and attached to the foundation with brackets. The underpinning brackets are utilized to support the weight of the structure. It is made from the highest quality steel, and is designed to last for years even under the most strenuous working conditions.
Besides our most popular Standard underpinning bracketsï¼?we can also manufacture several other types of brackets and connections.
Screw Anchor Brackets
Beam Support Bracket
Slab Bracket
Light Duty Bracket
Notes: OEM service is available, different materials and specifications can be customized according to your demands.
563 Cast Iron Boring Scrap Suppliers
Short on time? Let Cast Iron Boring Scrap sellers contact you.
