WEIFANG JUNLONG MACHINERY CO.,LTD

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Machinery parts - precision castings

Payment Type:
L/C,T/T,D/P
Incoterm:
FOB,CFR,CIF
Min. Order:
0.5-100 Kilogram
Transportation:
Ocean,Land,Air
Port:
Qingdao Port
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  • Product Description
Overview
Product Attributes

BrandJUNLONG

Casting MethodThermal Gravity Casting

ProcessInvestment Casting

Molding TechnicsGravity Casting

ApplicationAuto Parts

MaterialCarbon Steel

Surface PreparationPolishing

Surface RoughnessRa6.3

Machining Tolerance+/-0.01mm

StandardAISI

CertificationISO 9001:2008

Supply Ability & Additional Information

Packagingfumigation-free wooden case

TransportationOcean,Land,Air

Place of OriginWeifang,Shandong Province, China

PortQingdao Port

Payment TypeL/C,T/T,D/P

IncotermFOB,CFR,CIF

Packaging & Delivery
Selling Units:
Kilogram
Package Type:
fumigation-free wooden case

Low carbon bainite steel is a new type of steel with high strength, high toughness and multi-purpose.At present, low carbon bainite steel has been widely used in construction machinery.However, the low carbon bainite steel obtained in actual production is not composed of a single bainite structure, but is often composed of multiple microscopic structures, so the corresponding relationship between the mechanical properties of steel and bainite structure cannot be directly reflected.In view of this situation, the low carbon mn-b-cr-mo-nb steel was taken as the research object to conduct controlled rolling and controlled cooling test in a domestic steel company.By controlling the final cooling temperature, three different types of low carbon bainite steels are obtained, which are composed of all granular bainite, all batten bainite and granular bainite + batten bainite.After tensile and impact tests on the three different types of bainite steel, it is found that under the same chemical composition, granular bainite steel has the lowest strength and the best ductility.The bainite steel with the highest strength and the worst ductility;Steel composed of granular bainite + batten bainite, whose strength, toughness and plasticity are centered.It can be seen that the final cooling temperature has a great influence on the microstructure and mechanical properties of hot-rolled steel plates, and the comprehensive mechanical properties of low-carbon bainitic steel can be further improved by controlling the intermediate temperature transition microstructure.

Product Parameter


Wei fang Jun long Precision casting co., LTD., the main products are precision casting of carbon steel, Low carbon steel, medium carbon steel castings, high carbon steel, Alloy Steel Precision Casting, high manganese steel, high chromium steel, high nickel steel, a variety of materials such as precision casting products .The parts are mainly used in Precision Casting Of Auto Parts, Forklift Parts Castings, precision casing of ship parts, Precision Casting Of Train Parts, mechanical engineering, petroleum machinery, mining machinery .Our products has been exported to more than 20 countries and regions in the world. Our company has cooperated with our customers with the business philosophy of integrity, pragmatism, professionalism and innovation, and won the unanimous praise of our customers

The company covers an area of 30,000 square meters, with more than 200 employees, 10 r&d personnel and 12 quality control personnel. There are three production lines, two composite process (i.e. silica sol + water glass), and one silica sol process. The annual output reaches 8000 tons, the enterprise has passed iso9001:2005 quality management system certification, and passed the national environmental protection department approval, has the formal environmental assessment certificate, is a household name of the green casting enterprise

All the assembly lines in the workshop are made by our general manager according to practical experience. The product quality can be guaranteed while greatly improving the work efficiency and reducing the workload for the workers. By the end of 2015, all the workshops of our company have been automated production .For example, automatic wax injection machine, automatic silicon sol process robot, automatic silicon sol process wind main line, automatic water glass process assembly line and curing pool, automatic pouring. Because they are all automated production, the quality of the shell is guaranteed in the early stage,Precision casting products with weight from 0.1KG to 500KG can be completed .Products with wall thickness as low as 3mm. Products with complex shapes.The defects of porosity, sand hole, slag inclusion, cold insulation, shrinkage and other casting defects are effectively avoided

Are main products of our company adopted complex process (silica sol + water glass), adopt the low temperature wax, four shell layer using silica sol process, three layer using water glass process, composite process to produce a product that no matter from the surface finish, and internal quality and silicon sol process almost the same, the price is cheaper than silicon sol process a lot, and water glass price though it's cheap, but the product is very rough, and composite technology products of good quality and low prices, the most suitable for large batch of products, can guarantee the quality of customer requirements, and can guarantee a reasonable profit space, so, Our foreign customers have been cooperating with us for 8 years, and we have cooperated very well.

Inspection: our company has special physical and chemical laboratory, with perfect inspection equipment (spectrometer, three coordinate measuring machine, metallographic analyzer, impact test machine, tensile testing machine, hardness tester, magnetic particle inspection machine, ultrasonic testing, etc.), can satisfy the customer different product requirements, and issue a corresponding test report

 

Processing: we have two horizontal machining center, CNC machining center, bench drill, vertical drilling machine, rocker arm drilling machine, milling machine, grinder, planer, CNC lathes and other all-round machining equipment

 








Product Categories : Precision Casting Of Carbon Steel > Low Carbon Steel Parts

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Home > Products > Precision Casting Of Carbon Steel > Low Carbon Steel Parts > Machinery parts - precision castings

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