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.
Grey iron , SG iron.
Weight : from 1.5kg - 5000kg/pcs Casting principle, Sand casting & Gravity casting Machining Ability, heat treatment , surface polishing & coating, punching , turning , CNC service Product field , heavy lathe base , geotechocline casting iron rail ,steel mill equipment parts, heavy parts to roading machinery,engineering machinery around 3000 items
1.Specification:dn80-dn1600mm 2.Length:as per demand 3.Material:15cr2mo, 21crmo10, 30crmo 4.Usage:the pipe mould is mainly used for producting the ductile iron pipes. Wooden case packing
Casting part of a pump body for marine and oil industry; Casting type: silica sol lost wax process; Material: ca15 / 410 stainless steel; Weight: 15kg; Ped/ad2000 certificated; Chemical composition tested by german spectrometer; Ndt test (x rays, dye test etc) available. Weight: 15kg. Heat number tracing Maximum cast size 500*500*350mm Casting weights 20g~80kg Standards Astm, jis, din, bs, mil Wall thickness 1.5-2mm min Casting process type Silica sol lost wax casting Machining Cnc machining, cnc lathe Tolerances Raw casting material according to vdg p690. Can achieve tighter tolerance by cnc machining. Ndt service Dye inspection, x ray inspection, ultrasonic inspection etc Surface finish service Pickled, passivated, zinc plating, black phosphating , vibration polishing, electro polishing, satin polishing, hand polishing
Mzt learnica a.D. Skopje is stakeholder company in private ownership for manufacturing of castings from gray, ductile iron and nonferrous metals, with an almost 70 years tradition.We have implemented fully encircled technological line starting from manufacturing pattern equipment, core making, moulding, pouring, shot blasting, machining, coating, packing, and warehousing in own store for selling. Nmzt learnica a.D. Skopje has qualified labour force which is in system of continuous education for performing of following tasks: Manufacturing of pattern foundry equipment from wood, plastics and metal. Manufacturing of cores with co2 procedure and shell procedure. Moulding on lines (800x1000; 1200x1600; 800x800; 630x500 and hand moulding). Own plant for epoxy coating. Own plant for classic painting. Own plant for machining, lapping, milling, and shave. Euro pallet 1 tonovgv
Precision mold
Our highly qualified engineers and a state-of-the-art r&d unit ensure that our products are always of the highest quality. Standard lot size
Our most experienced fields are in mechanical products (including parts) for applications in automotive industry, railways, oil exploration, mining, construction and aluminum smelting equipment. With many years of experience, we learned the rules and we know the expectations of customers and have become part of their competitive strategy for success in their respective field. If you need a dependable partner in china, please spend some minutes to visit our website and see what we can do for you. . No solid wooden packing
Gray iron & ductile sand mould casting parts. Standard export packing, suitable for long distance ocean freight.
Different kinds of cast iron.
Cast iron casting.
Iron Castings 2kg-2000kg
20,25,30 gareded castings.
Normally the size is not larger than 3000x8000mm; if larger one is needed, we can joint together several smaller ones by connecting bolts.
The clamping surfaces are machined to din 876 and t- slots machined to din 650, which is provided on the upright surface for fixation of work pieces.
The main material is gray cast iron, nodular cast iron and alloy iron casting. The weight is from 50 kg to 300, 000 kg, using resin sand casting technical to avoid the casting defects.
Iron casting
Iron castings.
