Roll forging is a process where round or flat bar stock is reduced in thickness and increased in length. Roll forging is performed using two cylindrical or semi-cylindrical rolls, each containing one or more shaped grooves. A heated bar is inserted into the rolls and when it hits a spot the rolls rotate and the bar is progressively shaped as it is rolled through the machine. The piece is then transferred to the next set of grooves or turned around and reinserted into the same grooves. This continues until the desired shape and size is achieved. The advantage of this process is there is no flash and it imparts a favorable grain structure into the workpiece.
Main particulars
MAIN PARTICULARS
Material for product
Standard
ASTM, ASME, DIN, JIS, ISO, BS, API, EN
Certificate
ISO9001, BV
Dimension
As per drawing, as large as we can
Processing
Forging+blasting+Machining
Finishing surface
Machined surface with tectyl891, blasting and painting(Hempel, Inter, Sigma, Jotun), anodize, polishing
Marking
as per clients` requirements
Inspection
material, construction, dimension, heat treatment, hardness, NDT
Quality
ISO9001, BV, PPAP control production
CMM, digital projector, Rockwell hardness tester, hydraulic pressure
Lead time
5 days for sample, consult with customer for mass production
Delivery
Express for sample, ocean shipping/air for mass production
Our Capabilities
CNC Machining, CNC center machining, drilling, milling, turning, grinding, tapping, forging, stamping
Engineering&manufacturing services
R&D process, tooling and gauging design, product design
Integrated CAD/CAM system, test and measuring
Others
Recyclable, in line with environmental requirements and standards, and reliable
Stainless Steel Forging Stainless Steel Forging,Forging Carbon Stainless Parts,Alloy Stainless Forging Parts,Oem Alloy Stainless Forging Part Shinvast Industry Ltd , https://www.shinvastindustry.com
High quality Cushion Type EVA Foam Filled Marine Fenders with Strong Reinforcement Layers Floating Docks with Chain and tire net
Unsinkable design of boat polyurethane foam fender
-----Famous Brand from China
-----QEM polyurethane floating fender
-----QEM EVA fender, Pu fender, mooring buoy, Ocean buoy
QEM polyurethane floating fender( Unsinkable design of boat polyurethane foam fender ) is also a kind of compressed fender which builds outer protective layer with polyurethane, materials and adopts polyurethane foaming material or plastic foaming as buffer medium; The destructive effects on docks and ships will be reduced by the compression to absorb the impact energy from ships in the course of using polyurethane floating fender.
QEM foam fender advantages and features:
*Absorb more energy, less reverse impact on ships
*It has floating property proof against the tidal range;
*Its bright colors can supply products in various colors as quest;
*No air against the tidal range; Proof against corrosion
*No air inflation is needed during use with safety and maintenance-free;
*Use flange coupling and easy to install, move and use.
*High energy absorption and low reaction force
*No explosion risk, safety and reliability
*Many different sizes and shape available
*Tough, nylon filament reinforced polyurethane skin
*Unsinkable design and easy installation
*Low maintenance, burst resistance, and reliable performance
*Light but solid
Characteristic of QEM foam fender:
*With the general compression fender, solid foam filled polyurethane fender with floating performance, The installation position is not subject to tidal influence
*Compared with pneumatic fenders, has better energy absorption performance, and low reaction performance
*Compared with pneumatic fenders, does not require the use of check, inflatable, with maintenance-free; No explosion risk, with safety
*Product specifications according to the needs of manufacturing, in the polyurethane fender in the specifications of the largest
QEM foam fender's range of use:
*The marine terminal fender
*Suitable for gravity and London Wharf, especially the large tidal range of the dock
*Particularly applicable to the ship by ship fender, floating fender more adaptability
*As the pier fender, protection of bridge piers, ships from damage;
*Ship-to-ship transfers, Navy berths, Oil and gas tankers, General cargo, Bulk
*Ferries, Container vessels, Cruise ships
The photos of our Stainless Steel Forging
stainless
Model NO.: YT-1220-Ever Cushion type
History: Since 1980s
Price: Satisfactory
Marine Supplier: Foam Fender
Application: Sts, Std, Outboard
Design Using Life: 12-15 Years
Trademark: Qingdao Evergreen Maritime Co., Ltd
Specification: World Class
Origin: Qingdao Shandong China
HS Code: 40169500