How To Get Screw Pump Rotors for the petroleum industry With Whirling Machine?

In the petrochemical industry, screw pump rotors have various application scenarios. For example, in the petroleum refining process, screw pumps are often used to achieve vacuum distillation and degassing operations, reducing system pressure and improving product quality through efficient pumping capabilities.

In addition, during chemical reactions, screw pumps can be used for vacuum drying and desolvation operations to improve reaction efficiency. In the production of polymer materials, screw pumps are used for vacuum extraction and extrusion operations to ensure the safety and efficiency of the production process.

9 Steps Get Screw Pump Rotors For The Petroleum Industry Use Whirling Machine

image
How To Get Screw Pump Rotors for the petroleum industry With Whirling Machine? 5
image 1
How To Get Screw Pump Rotors for the petroleum industry With Whirling Machine? 6

Using cyclone milling to process screw pump rotors in the petroleum industry can be done by following the following steps:

1.Design and planning

  • Carry out detailed design and process planning according to the specific specifications and requirements of the screw pump rotor. Determine the size of the rotor, helix parameters (such as lead, helix angle, etc.) and machining accuracy requirements.
  • Select the appropriate cyclone milling tool and tool holder system to ensure that the material and geometry of the tool are suitable for the material and processing requirements of the screw pump rotor in the petroleum industry. Generally speaking, for materials with higher hardness, carbide cutting tools can be chosen.

2.Equipment inspection and debugging

  • Check whether all functions of the tornado milling machine are normal, including spindle rotation, tool feed, cooling system, etc. Ensure that the accuracy and stability of the machine tool meet processing requirements.
  • Install and debug the cutting tool to ensure that the cutting tool is firmly installed and has good concentricity with the machine tool spindle. Adjust the protrusion length and angle of the tool to match the parameters of the rotor to be processed.

3.Artifact preparation:

  • Prepare the screw pump rotor blank to be processed. Ensure that the size and quality of the blank meet the requirements and that there are no obvious defects on the surface.
  • Install the rotor blank on the chuck or fixture of the whirling machine tool, ensuring that the installation is firm and the positioning is accurate. Special fixtures can be used to ensure the stability and accuracy of the rotor during processing.

4.Parameter settings

  • According to the material, size and processing requirements of the rotor, set appropriate cutting parameters, including cutting speed, feed speed, cutting depth, etc. Generally speaking, for materials with higher hardness, the cutting speed should be appropriately reduced to reduce tool wear; the feed speed and cutting depth should be reasonably adjusted according to processing efficiency and accuracy requirements.
  • Set the helix angle and rotation direction of the cyclone milling machine to match the helix parameters of the screw pump rotor. Ensure that the tool can cut along the correct spiral path during machining.

5.roughing

  • Start the tornado milling machine for rough machining. In the roughing stage, the main purpose is to quickly remove most of the allowance and improve processing efficiency. Larger cutting depth and feed speed can be used, but care should be taken to control the cutting force to avoid tool damage or workpiece deformation.
  • Regularly check the tool wear during processing and replace seriously worn tools in a timely manner to ensure processing quality and efficiency.

6.Finishing

  • After rough machining is completed, finish machining is performed. Reduce the cutting depth and feed speed, and increase the cutting speed to obtain higher machining accuracy and surface quality.
  • Pay attention to controlling the temperature during processing to avoid excessive temperature deformation of the workpiece or increased tool wear. A cooling system can be used to cool the tool and workpiece and reduce the processing temperature.

7.Quality Check

  • After processing is completed, the screw pump rotor is inspected for quality. Mainly check whether dimensional accuracy, surface roughness, spiral shape, etc. meet the design requirements. Measuring equipment such as measuring tools and profilometers can be used for measurement.
  • For parts that do not meet the requirements, appropriate trimming or reprocessing will be carried out until the quality requirements are met.

8.Surface Treatment

According to the special requirements of the petroleum industry, the screw pump rotor is subjected to surface treatment, such as coating, anti-corrosion treatment, etc., to improve the wear resistance, corrosion resistance and fatigue resistance of the rotor.

9.Cleaning And Packaging:

  • Clean the processed screw pump rotor to remove oil stains, chips and other impurities on the surface. Cleaning agents and compressed air can be used.
  • Pack the rotor with appropriate protective measures to prevent damage during transportation and storage.

In short, the use of cyclone milling to process screw pump rotors in the petroleum industry requires sufficient preparation, reasonable setting of processing parameters, strict control of quality during processing, and appropriate follow-up processing to ensure that the processed rotors meet the high requirements of the petroleum industry. Standard requirements.

image 2
How To Get Screw Pump Rotors for the petroleum industry With Whirling Machine? 7
image 3
How To Get Screw Pump Rotors for the petroleum industry With Whirling Machine? 8

What Are The Advantages Of Whirling Machine Tools In The Development Of Petrochemical Industry?

Tornado milling machine tools have the following advantages in the development of the petrochemical industry:

Efficient processing capabilities

  • High cutting speed: The tool of the cyclone milling machine rotates at high speed, which can reach a high cutting speed and remove materials quickly, greatly improving the processing efficiency. For mass-produced parts in the petrochemical industry, such as various screws, lead screws, worms, etc., cyclone milling can complete processing in a short time, meeting the industry’s high requirements for production efficiency. For example, when processing the threaded part of the sucker rod, cyclone milling can complete the thread processing quickly and accurately, improving the production efficiency of the sucker rod.
  • One-time forming processing: Cyclone milling can complete the processing of complex shapes in one pass, reducing the processing procedures and the number of clampings, avoiding errors caused by multiple clampings, and further improving processing efficiency and accuracy. Like some shaft parts with special shapes, cyclone milling can complete the processing of spiral grooves, threads and other structures on the shaft at one time, saving processing time and costs.

High-precision Processing Guarantee

  • High tool precision: The tools used in cyclone milling usually have high precision and rigidity, which can ensure the dimensional accuracy and surface quality of processing. In the petrochemical industry, many parts have high precision requirements, such as seals, valve cores, etc. The high-precision processing capabilities of cyclone milling can meet the processing requirements of these parts and ensure their performance and reliability1.
  • Good movement precision control: The control system of the cyclone milling machine tool can accurately control the relative movement of the tool and the workpiece to ensure the accuracy and consistency of processing. Whether it is linear motion or rotational motion, high-precision control can be achieved, making the processed parts have small dimensional tolerances and high shape accuracy4.

Adapt to processing of various materials:

Handling of difficult-to-machine materials: Some difficult-to-machine materials are used in the petrochemical industry, such as high-temperature alloys, corrosion-resistant alloys, etc. With its powerful cutting capabilities and appropriate tool selection, the cyclone milling machine tool can effectively process these difficult-to-machine materials and meet the special material requirements of petrochemical equipment.

Adaptation to materials with different hardness: For various materials with different hardness in the petrochemical industry, cyclone milling can select appropriate cutting parameters and tools according to the characteristics of the material to ensure smooth processing. For example, for both alloy steel materials with higher hardness and cast iron materials with lower hardness, whirling milling can perform efficient and high-quality processing.

Good processing stability

  • Low vibration and low noise: During the processing of the cyclone milling machine, the high-speed rotation and cutting method of the tool make the processing process relatively smooth, with low vibration and noise. This is very important for the production environment in the petrochemical industry, not only to reduce physical harm to operators, but also to improve the safety and comfort of the production site.
  • Reliable processing performance: The structural design and manufacturing process of the cyclone milling machine ensure its stability and reliability during long-term work, and can adapt to the needs of continuous production in the petrochemical industry. Even during long-term processing, stable processing accuracy and quality can be maintained, reducing equipment downtime and maintenance costs.

Flexible process adaptability

  • Adjustable helix angle: The cyclone milling machine tool can easily adjust the helix angle, which can meet the processing needs of various spiral structure parts in the petrochemical industry. For example, when processing the rotor of a screw pump, the helix angle can be accurately adjusted according to the design requirements of the rotor to ensure the performance of the screw pump.
  • Easy to integrate with other equipment: Cyclone milling machine tools can be integrated with other equipment to form an automated production and processing line. In the petrochemical industry, it can be used in conjunction with CNC machine tools, robots and other equipment to realize automated processing and production of parts, improving production efficiency and automation.

How To Determine The Processing Technology Of Screw Pump Rotors In The Petroleum Industry?

To determine the processing technology of screw pump rotors in the petroleum industry, the following aspects can be considered:

1.Analyze parts requirements

Learn about rotor functions

  • Clarify the specific role and working environment of the screw pump rotor in the petroleum industry. For example, when the rotor is used to transport high-viscosity crude oil, it needs to have good wear resistance and corrosion resistance to ensure long-term stable operation under harsh working conditions. This requires that appropriate materials and surface treatments be considered in the machining process.
  • Consider the matching accuracy requirements of the rotor and stator. The performance of the screw pump depends largely on the gap control between the rotor and the stator, so the processing technology must ensure the dimensional accuracy and shape accuracy of the rotor to achieve good sealing and efficient transportation.

Determine technical indicators

  • Analyze the technical requirements such as dimensional accuracy, surface roughness, and geometric tolerances marked on the drawings. For example, for rotors with high dimensional accuracy requirements, precision processing equipment and processes may be required, such as CNC machining centers or grinder processing.
  • According to the working pressure and flow requirements, determine the strength and stiffness indicators of the rotor. This may involve selecting appropriate materials and heat treatment processes to improve the mechanical properties of the rotor.

2.Choose processing method

roughing

  • For large screw pump rotors, casting or forging blanks can be used, and then rough machining can be performed to remove most of the allowance. For rough machining, you can choose ordinary machine tools, such as vertical lathes or horizontal lathes, and use large cutting amounts and low speed processing methods to improve processing efficiency.
  • During the rough machining process, attention should be paid to reasonably arranging the processing sequence to avoid deformation of the workpiece due to stress concentration. For example, the outer shape can be processed first, then the internal structure can be processed, and finally hole processing can be performed.

Semi-finishing

  • The purpose of semi-finishing is to further improve the dimensional accuracy and surface quality of the workpiece to prepare for finishing. CNC machining centers can be used to perform milling, boring and other processing operations, and the machining allowance can be controlled within a small range.
  • For rotors with special shape requirements, such as spiral curved surfaces, a five-axis linkage machining center can be used to ensure processing accuracy and surface quality.

finishing

  • Finishing is a key link to ensure the final quality of the rotor. For rotors that require extremely high dimensional accuracy and surface roughness, grinding can be used. For example, a high-precision cylindrical grinder or internal cylindrical grinder is used to grind the cylindrical surface of the rotor to achieve the required dimensional accuracy and surface roughness.
  • For the finishing of spiral surfaces, special processing methods such as special screw grinders or electric discharge machining can be used. These processing methods can accurately control the shape and size of the spiral surface and improve the performance of the rotor.

3.Determine process parameters

Cutting parameters

  • According to the workpiece material, tool material and processing method, determine the reasonable cutting speed, feed speed and cutting depth. For example, for alloy steel rotors with higher hardness, the cutting speed should be appropriately reduced to reduce tool wear; the feed speed and cutting depth should be adjusted according to machining accuracy and surface quality requirements.
  • The optimal cutting parameters can be determined through cutting experiments or by referring to the machining manual. In the actual machining process, the cutting parameters should also be adjusted in time according to the tool wear condition and the surface quality of the workpiece.

Heat treatment process

  • According to the material and performance requirements of the rotor, select the appropriate heat treatment process. For example, for rotors that need to improve hardness and wear resistance, heat treatment methods such as quenching and tempering can be used; for rotors that need to improve toughness and fatigue resistance, quenching and tempering can be used.
  • Determine the heating temperature, holding time, cooling method and other parameters of heat treatment to ensure that the heat treatment effect meets the expected requirements. At the same time, attention should be paid to deformation control during heat treatment and appropriate measures should be taken to prevent workpiece deformation.

Surface treatment

  • In order to improve the corrosion resistance and wear resistance of the rotor, surface treatment can be carried out. Common surface treatment methods include chrome plating, nickel plating, ceramic spraying, etc. When selecting a surface treatment method, factors such as the use environment of the workpiece, cost and process feasibility should be considered.
  • Determine the process parameters of surface treatment, such as coating thickness, hardness, bonding strength, etc., to ensure the quality and performance of surface treatment.

4.Formulate process route

Plan the processing flow

  • Develop detailed process routes based on the processing requirements of the parts and the selected processing method. The process route should include the sequence of each processing step, the selection of processing equipment, the use of tools and fixtures, etc.
  • For example, for the processing of screw pump rotors, rough machining can be performed first, then semi-finishing and heat treatment, and finally finishing and surface treatment. Between each process, appropriate inspection links should be arranged to ensure that the quality of the workpiece meets the requirements.

Consider process optimization

  • In the process of formulating the process route, it is necessary to continuously optimize the process plan and improve processing efficiency and quality. For example, advanced processing technologies, such as high-speed cutting and dry cutting, can be used to reduce processing time and costs; automated processing equipment and production lines can be used to improve production efficiency and consistency.

Write process documents

  • Organize the determined processing technology into process documents, including process flow charts, processing technology cards, tool lists, fixture design drawings, etc. The process documents should describe the operating methods, process parameters and inspection requirements of each processing step in detail to facilitate execution by operators and inspection by quality control personnel.

In short, determining the processing technology of screw pump rotors in the petroleum industry requires comprehensive consideration of parts requirements, processing methods, process parameters and process routes, etc., through continuous optimization and improvement, to ensure that high-quality screw pump rotors can be processed to meet the requirements of the petroleum industry. please contact us if you want to know more.

Scroll to Top

Let's get in touch