China high quality Flange Cast Iron Coupling Steel Universal Joint Cardan Pump Rubber Motor Disc Curved Tooth Flex Rigid Drive Shaft Nm Yox Fluid Jaw Flexible Chain Gear Couplings

Product Description

Excellent powder metallurgy parts metallic sintered parts
We could offer various powder metallurgy parts including iron based and copper based with top quality and cheapest price, please only send the drawing or sample to us, we will according to customer’s requirement to make it. if you are interested in our product, please do not hesitate to contact us, we would like to offer the top quality and best service for you. thank you!

How do We Work with Our Clients
1. For a design expert or a big company with your own engineering team: we prefer to receive a fully RFQ pack from you including drawing, 3D model, quantity, pictures;

2. For a start-up company owner or green hand for engineering: just send an idea that you want to try, you don’t even need to know what casting is;

3. Our sales will reply you within 24 hours to confirm further details and give the estimated quote time;

4. Our engineering team will evaluate your inquiry and provide our offer within next 1~3 working days.

5. We can arrange a technical communication meeting with you and our engineers together anytime if required.

The Advantage of Powder Metallurgy Process

1. Cost effective
The final products can be compacted with powder metallurgy method ,and no need or can shorten the processing of machine .It can save material greatly and reduce the production cost .

2. Complex shapes
Powder metallurgy allows to obtain complex shapes directly from the compacting tooling ,without any machining operation ,like teeth ,splines ,profiles ,frontal geometries etc.

3. High precision
Achievable tolerances in the perpendicular direction of compacting are typically IT 8-9 as sintered,improvable up to IT 5-7 after sizing .Additional machining operations can improve the precision .

4. Self-lubrication
The interconnected porosity of the material can be filled with oils ,obtaining then a self-lubricating bearing :the oil provides constant lubrication between bearing and shaft ,and the system does not need any additional external lubricant .

5. Green technology
The manufacturing process of sintered components is certified as ecological ,because the material waste is very low ,the product is recyclable ,and the energy efficiency is good because the material is not molten. 

FAQ
Q1: What is the type of payment?
A: Usually you should prepay 50% of the total amount. The balance should be pay off before shipment.

Q2: How to guarantee the high quality?
A: 100% inspection. We have Carl Zeiss high-precision testing equipment and testing department to make sure every product of size,appearance and pressure test are good. 

Q3: How long will you give me the reply?
A: we will contact you in 12 hours as soon as we can.

Q4. How about your delivery time?
A: Generally, it will take 25 to 35 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. and if the item was non standard, we have to consider extra 10-15days for tooling/mould made.

Q5. Can you produce according to the samples or drawings?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q6: How about tooling Charge?
A: Tooling charge only charge once when first order, all future orders would not charge again even tooling repair or under maintance.

Q7: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
    2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
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What are the Differences between Fluid Couplings and Mechanical Clutches?

Fluid couplings and mechanical clutches are both components used in power transmission systems, but they operate on different principles and have distinct characteristics:

1. Operating Principle:
   • Fluid Coupling: A fluid coupling uses hydraulic fluid to transmit torque. It consists of an impeller and a runner immersed in a fluid-filled chamber. When the input shaft (driving member) rotates, it imparts motion to the fluid, which in turn drives the output shaft (driven member).
   • Mechanical Clutch: A mechanical clutch relies on physical contact between friction surfaces to transmit torque. When engaged, the clutch plates or discs press against each other, creating a mechanical link between the input and output shafts.
2. Slippage:
   • Fluid Coupling: Fluid couplings allow a certain degree of slippage between the input and output shafts. This slippage provides a smooth start and helps protect the machinery from shock loads.
   • Mechanical Clutch: Mechanical clutches have minimal slippage when engaged, providing a direct and rigid connection between the input and output shafts.
3. Control:
   • Fluid Coupling: Fluid couplings provide automatic torque transmission without the need for manual engagement or disengagement.
   • Mechanical Clutch: Mechanical clutches require manual actuation to engage or disengage, allowing for precise control over power transmission.
4. Heat Dissipation:
   • Fluid Coupling: Fluid couplings dissipate heat generated during operation, which helps prevent overheating of the system.
   • Mechanical Clutch: Mechanical clutches may generate more heat due to friction, requiring additional cooling mechanisms in high-power applications.
5. Applications:
   • Fluid Coupling: Fluid couplings are commonly used in heavy machinery, such as mining equipment, crushers, and conveyors, where shock absorption and smooth starts are crucial.
   • Mechanical Clutch: Mechanical clutches are prevalent in applications where precise engagement and disengagement are required, such as automotive transmissions and manual industrial machinery.

While both fluid couplings and mechanical clutches serve the purpose of transmitting torque, their different operating principles and features make them suitable for specific applications and operating conditions.

Fluid Couplings in Hydraulic Drive Systems

Yes, fluid couplings can be used in hydraulic drive systems to transmit power and control the speed of driven components. In hydraulic drive systems, fluid couplings act as a torque converter, providing a smooth and gradual transfer of power between the input and output shafts.

The basic principle of a fluid coupling remains the same whether it is used in a mechanical drive system or a hydraulic drive system. The fluid coupling consists of an input impeller connected to the prime mover (such as an electric motor or an engine) and an output runner connected to the driven component.

When the prime mover is activated, it drives the input impeller, creating a flow of hydraulic fluid within the coupling. This fluid flow creates a hydrodynamic torque that is transferred to the output runner, driving the connected component. The fluid coupling allows for a controlled slip between the input and output, allowing the driven component to start smoothly and gradually reach its desired speed.

In hydraulic drive systems, fluid couplings offer several advantages:

• Smooth Torque Transmission: Fluid couplings provide smooth torque transmission, reducing shocks and vibrations in the system.
• Overload Protection: Fluid couplings can protect the drive system from overloads by allowing some slip in the event of sudden changes in load or jamming of the driven component.
• Speed Control: By controlling the flow of hydraulic fluid, the speed of the driven component can be precisely regulated.
• Energy Efficiency: Fluid couplings can help improve energy efficiency by reducing mechanical losses and optimizing power transmission.

Hydraulic drive systems with fluid couplings are commonly used in various industrial applications, including conveyor systems, mining equipment, marine propulsion, and more. They offer reliable and efficient power transmission while protecting the machinery from excessive loads and shocks.

It’s essential to consider the specific requirements of the hydraulic drive system and the characteristics of the fluid coupling to ensure optimal performance and efficiency in the application.

Improvement of Starting Performance in Large Machines with Fluid Couplings

Fluid couplings play a crucial role in enhancing the starting performance of large machines, especially those with high inertia loads. Here’s how a fluid coupling achieves this improvement:

• Smooth Startup: When a machine equipped with a fluid coupling starts, the input shaft begins to rotate, and the impeller starts to churn the fluid inside the coupling. This action creates a hydrodynamic torque transfer between the impeller and the turbine. As the fluid circulates and builds up torque, the output shaft begins to accelerate smoothly without any sudden jolts or shocks.
• Inertia Compensation: In large machines, the rotating mass and initial resistance to motion can be significant. The fluid coupling’s ability to transmit torque gradually allows it to compensate for the inertia of the driven load. This means that even with heavy loads, the fluid coupling can slowly bring the machine up to its operating speed without subjecting the mechanical components to excessive stress.
• Overload Protection: During startup, if the machine encounters an unexpected overload or jam, the fluid coupling provides a level of protection. The fluid coupling will slip, limiting the torque transmitted to the output shaft, thus preventing damage to the machine and associated components.
• Reduction of Electrical Stress: In machines powered by electric motors, the use of a fluid coupling reduces the electrical stress during startup. As the fluid coupling gradually accelerates the load, it prevents abrupt spikes in electrical current, resulting in a smoother and controlled power draw from the electrical supply.

By offering smooth startup, inertia compensation, overload protection, and reduced electrical stress, a fluid coupling significantly improves the starting performance of large machines, ensuring their longevity, reliability, and overall operational efficiency.

editor by CX 2024-04-16