Automated finishing and polishing technology for cast iron parts

How to deburr, descale, polish, brighten the cast iron parts?

Items cast from molten iron are collectively called cast iron parts. Due to the influence of the manufacturing process, defects such as pores, pinholes, slag inclusions, cracks, pits, rust spots, burrs, and flash often occur. Do you know how to automatically remove burrs, flash, rust and scale, and polish and brighten cast iron parts? In this case, we will share the process technology and methods of deburring, derusting and descaling, and polishing brightness of an electric hardware used in the power industry – steel foot cast iron parts. This polishing process solution is also applicable to the surface polishing of other hard metal casting parts.

    • jerrylu
    • 2024-06-03
    • 0 Comments

     

deburring, derusting, descaling, polishing, brightening effect of precision bearing steel casting iron feet

1. Cast iron steel feet before polishing
The surface burrs and oxide scale of cast iron feet before polishing

Materials:

cast iron

Appearance:

thick oxide skin on the surface

Shape:

barbell-shaped iron castings

Size:

40*200MM

Pre-polishing process:

rolling

Post-polishing process:

galvanizing

2. Finishing and polishing requirements
  • deburring, descaling
  • smooth, bright surface, no burrs, no oxide scale
3. Cast iron steel foot polishing process details:
Process steps （1） rough finishing of deburring, descaling （2） fine polishing （3） vibratory dryer
Machinery and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Speed highest highest highest
Tumbling media Angle cut cylinder ceramic media Spherical stainless steel media corn cob polishing media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount，the liquid level does not exceed the tumbling media appropriate amount，the liquid level does not exceed the tumbling media no
Polishing time 60 minutes 30 minutes 15 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water vibratory drying
4. Cast iron feet after finishing and polishing
deburring, descaling, polishing, brightening of steel foot cast iron parts

rough finishing

steel foot cast iron parts after finishing and polishing

after fine finishing and polishing

5. Additional instructions
  • Cast iron parts are generally medium-to-large product components, and most of the surface treatments are done by sandblasting and shot blasting. However, this product is small in size and large in quantity, with a daily output of several tons. In order to improve efficiency and surface treatment quality, a vibratory finisher is used with heavy-cutting-force angle cut cylinder tumbling media for rough finishing. The sharp edge of the ceramic media can reach into grooves, corners, and gaps to remove burrs and oxide layers.
    For brightening polishing, a general-purpose vibratory polishing machine is used. The polishing media is made of stainless steel ball specially designed for polishing brightness, which can improve the surface brightness and achieve a shiny effect.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in a anti-rust liquid for anti-rust treatment after polishing. Finally, a vibrating dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case, we demonstrated the process of deburring, descaling, derusting, polishing, brightening of a steel foot of cast iron product using a polishing machine.
  • If you need professional technical support for the following polishing issues of cast steel parts, you can refer to the above cases:
    Polishing of cast iron parts
    How long does it usually take to polish cast iron parts
    Methods for deburring cast iron parts
    Automation of deburring cast iron parts
    Rust removal of cast iron parts
    How to remove rust from cast iron
    How to remove oxide scale from cast iron parts
    What are the methods for removing rust from cast iron parts
    How to remove rust from cast iron parts
    Polishing of cast iron parts
    Polishing of castings
    How to polish iron products
    Polishing and finishing of cast iron
    Polishing process of cast iron
    How to remove burrs from iron parts
    Descaling of castings
    Polishing process of cast iron
    What are the methods and techniques for polishing castings
    Polishing technology of pig iron
    Polishing process of electric hardware

Deburring,descaling and polishing method of copper alloy die castings (floor sockets)

How to chamfer, deburr, descale, polish and brighten copper alloy die castings?

Copper alloy die casting is a mature and versatile production process, which is used to manufacture a variety of hardware parts products. Commonly copper alloys include copper-aluminum alloy, copper-zinc alloy, copper-nickel alloy, etc. Die casting products will produce burrs, flash, scratches, oxide scale and other defects during the production process. Do you know what kind of finishing and polishing process copper alloy die castings need to go through to obtain a satisfactory surface effect? ​​In this case, we will share a copper alloy floor socket deburring, descaling, polishing, brightening process technology and methods. This polishing process solution is also suitable for the surface polishing of brass, zinc alloy, aluminum alloy, magnesium alloy and other products.

    • jerrylu
    • 2024-06-03
    • 0 Comments

     

deburring, derusting, descaling, polishing of copper alloy die castings (floor outlets)

1. copper alloy floor outlet before polishing
copper alloy die castings (floor outlets) surface burrs and oxide scale before polishing

Materials:

copper-zinc alloy

Appearance:

burrs on the edges,oxide scale on the surface

Shape:

square

Size:

120*120MM

Pre-polishing process:

die casting

Post-polishing process:

electroplating

2. requirements for polishing
  • chamfer and remove flash, grooves without burrs.
  • smooth and bright surface, no burrs, no oxide scale
3. Copper alloy floor outlets polishing process details:
Process steps （1） rough finishing, chamfering, deburring, descaling （2） fine polishing （3） vibratory drying
Machine and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Amplitude and speed highest speed highest speed highest speed
Tumbling media Cone resin media Spherical white corundum finishing media corn cob polishing media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount, the liquid level does not exceed the tumbling media appropriate amount, the liquid level does not exceed the tumbling media no
Polishing time 60 minutes 30 minutes 15 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water vibrating drying
4. copper alloy floor outlet after finishing and polishing
copper alloy floor outlet chamfering, deburring, descaling, polishing effect
copper alloy floor socket chamfering, deburring, descaling, polishing effect

5. Additional instructions
  • Copper alloy floor outlets have low hardness and are medium-sized product parts with a large daily processing quantity. Therefore, a vibratory polishing machine is used with a cone plastic media with low hardness to perform rough finishing. The conical tip can touch deep into the groove to remove burrs and chamfers.
    Fine polishing and brightening is also achieved by using a vibrating finishing machine, with spherical white corundum finishing media with high hardness and light cutting force, which can cut a small amount, further reduce the roughness and improve the surface brightness.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in the anti-rust liquid for anti-rust treatment after polishing. Finally, a vibrating dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case study, we demonstrate the process of chamfering, deburring, descaling and polishing the surface of a copper alloy die-casting component, a floor socket.
  • If you need professional technical support for the following product polishing issues, you can refer to the above cases:
    Die casting surface treatment process
    Die casting polishing process
    Die casting deburring process
    Die casting deburring method
    How to remove oxide scale from die casting
    Descaling of die casting aluminum
    Copper alloy die casting product polishing process
    Copper alloy hardware polishing
    Copper alloy mechanical polishing
    Copper alloy polishing skills
    Copper alloy die casting deburring method
    How to deal with copper alloy die casting deburring
    Copper alloy deoxidation method
    Aluminum alloy die casting product polishing process
    Zinc alloy die casting product polishing
    Aluminum alloy die casting product deburring
    Aluminum alloy hardware polishing
    How to deburr zinc alloy hardware

Finishing process method for deburring, deflashing, trimming from plastic rubber silicone and nylon product parts

How to remove burrs,flash and finish plastic, rubber, silicone and nylon product parts?

During the injection molding process of rubber, plastic, silicone and nylon products, due to mold, process or raw material reasons, a large number of burrs and flash often occur on the edge of the product or in the inner hole. The existence of this burr phenomenon will have a negative impact on the surface quality of the product. The commonly used and simple method of deburring and trimming is to use a scraper for manual processing. Of course, this is only suitable for a small number of products. If large quantities of automated mechanical processing are required, since rubber, plastic, silicone, and nylon products are soft and tough, Conventional vibration/barrel finishing, electrolysis, plasma, and magnetic processes cannot achieve satisfactory results. Today we will share a case of how to deburr, deflash from rubber shin guard products to achieve high-efficiency trimming in large quantities. This finishing process is also suitable for trimming requirements of other plastic, polyester, silicone, nylon, aluminum alloy, zinc alloy and other product parts with soft, light and hard-to-break burrs such as mobile phone cases, watch bands, O-rings and other plastics.

    • jerrylu
    • 2024-05-21
    • 0 Comments

     

Process method for deburring and deflashing on shin guards of rubber plastic products

1. The state of the rubber shin guards before deburring
How to deburr and deflash from rubber shin pad

Materials：

Eucommia rubber

Appearance:

Long burrs, rough edge

Shape：

Special shape

Size：

150*120 MM

Process before trimming：

Injection molding

Process after trimming：

Forming

2. Deburring and deflashing requirements
  • Batch deburring, deflashing, trimming
3. Detailed process of deburring and deflashing from rubber shin guards：
Process Steps （1） freeze deburring and deflashing
Mahines and Equipments deburring machine for plastic rubber products
Amplitude and Speed high speed
Finishing Abrasive Media plastic elastic sand
Ratio of abrasive to workpiece 4：1
Compound Liquid none
Water none
Process Time 10 minutes
4. Effect comparison of rubber shin pad after removing burrs
How to debur and deflash from rubber and plastic shin guards
Rubber plastic shin guards frozen deburring deflashing effect

5. Additional instructions
  • Due to process limitations, rubber, aluminum alloy, zinc alloy and other products made by injection molding, casting and other processes often have a long layer of burrs around them after molding. This kind of burr is very thin, easy to bend, and has a certain degree of toughness, so simple mechanical and physical removal methods are not effective. Nowadays, a special deburring and trimming machine for rubber and plastic products is used to place the workpieces in batches into a special barrel and roll them. During the processing, liquid nitrogen is added to reduce the surface of the workpieces to more than 100 degrees below zero in a short time, making the edges of the workpieces The burrs and flash will become brittle and broken, but the body of the workpiece will not be affected. While the workpiece is rolling, it is supplemented by high-speed moving plastic elastic sand abrasives that impact the surface of the product, which can accelerate the removal of burrs and rough edge on the edges of the product or inside the holes to improve the surface effect.
  • Another thing to note is that in order to test different processes, we divided the sample into four small pieces and finally determined the optimal deburring plan.

6. Final summary
  • In this case, we demonstrate an automated finishing and trimming process that uses a freezing process to remove burrs and flash from the outer surface and internal holes of rubber shin guards.
  • If you have problems with deburring, deflashing and trimming aluminum alloy, zinc alloy, rubber, nylon, silicone, plastic product parts or the following products using casting, injection molding and other processes and need professional technical support, you can refer to the above cases:
    How to deburr plastic
    Quickly remove burrs from plastic products
    Solution to burrs in injection molded parts
    How to remove plastic burrs and flash edges
    Deburring methods for plastic products
    How to quickly deal with plastic flash
    How to deal with plastic flash
    How to solve the problem of burrs on plastic products
    Deburring plastic products
    Tips for deburring plastic parts
    Rubber deburring process
    Advanced methods for rubber deburring
    How to quickly remove burrs from rubber products
    Rubber deburring equipment
    How to remove burrs from silicone
    Treatment method for silicone burrs

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