diaphragm seals deburring, turning lines removal and polishing technology method of rubber and plastic product parts

How to deburr,deflash,remove turning lines of rubber, plastic diaphragm seal parts?

The diaphragm seal is a key component of pneumatic pumps and valves, diaphragm pump valve bodies and other products. Its main function is to perform the sealing function. It has been widely used in petrochemical, electric power, aviation, machinery and textile, medical and other industries. The main materials are PTFE polytetrafluoroethylene, Teflon and other polymer materials. There are slight burrs and turning lines in the production process, which will affect the sealing performance of the product. How to mechanically remove burrs and turning lines on the surface and reduce the roughness is a very troublesome problem. In this case, we will share a PTFE sealing diaphragm product high-efficiency deburring, removal of turning lines to reduce the surface roughness of the process technology and method. This finishing process solution is also suitable for deburring, deflashing and polishing of polymer products made of other materials such as polyester and resin.

    • jerrylu
    • 2024-06-05
    • 0 Comments

     

Surface deburring, removing turning lines, finishing and polishing process for sealing diaphragms of rubber and plastic product parts

1. Plastic sealing diaphragm before polishing
burrs and turning tool lines of diaphragms sealing of plastic, rubber parts

Materials:

PTFE(polytetrafluoroethylene)

Appearance:

surface burrs and turning tool lines

Shape:

circular

Size:

D40*20 mm

Pre-polishing process:

injection molding

Post-polishing process:

packing

2. Finishing and polishing requirements
  • deburring, deflashing, removal of turning tool lines.
  • smooth surface with a roughness of Ra 0.5 or less.
3. Plastic sealing diaphragm polishing process details:
Polishing processes （1） deburring, removal of turning tool lines （2） reduce roughness of fine polishing （3） drying
Machine and equipment plastic parts polishing machine plastic parts polishing machine dryer
Speed highest highest highest
Abrasive media heavy cut ceramic deburring media porcelain polishing media no
Abrasive media to workpiece 4：1 6：1 no
Chemical compound cutting liquid fine polishing liquid no
Water appropriate amount,the liquid level is 30mm above the abrasive media appropriate amount,the liquid level is 30mm above the abrasive media no
Polishing time 30 minutes 30 minutes 5 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water drying
4. The plastic sealing diaphragm removing turning tool lines after polishing
plastic,rubber parts sealing diaphragm deburring, removing turning lines
deburring,deflashing,removal of turning tool lines of plastic,rubber sealing diaphragm parts

5. Additional instructions
  • The burrs on the surface of the sealing diaphragm are relatively slight, but the turning tool lines are very deep. The rough finishing and polishing machine uses a special polishing machine for plastic products. Rough grinding uses coarse-grained abrasives media to achieve the effect of removing burrs and turning tool marks.
    Fine polishing uses precision finishing ceramic media with micro-cutting force and fine-grained tumbling media, which can further reduce the surface roughness.
  • After fine polishing, use an automatic separating machine to separate the product from the abrasive media, and then use a dryer to dry it after cleaning.

6. Final summary
  • In this case, we demonstrate the process solution of automated deburring, removing turning tool lines and polishing of a PTFE polytetrafluoroethylene sealing diaphragm product.
  • If you need professional technical support for the deburring, deflashing, removal of turning tool lines and polishing of PE polyethylene, PA polyamide, PP polypropylene, polytrifluoroethylene, polyvinylidene fluoride and plastic, rubber and other polymer material product parts or the following plastic accessories, you can refer to the above cases:
    Plastic product deburring and finishing method
    Plastic product deburring tool equipment
    How to deal with plastic product burrs
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    Injection molded parts deburring
    Plastic product deburring
    Plastic parts deburring
    How to remove plastic burrs
    How to grind off burrs on plastic products
    Quickly remove burrs from plastic products
    Plastic parts deburring process
    What is the best polishing method for deburring plastic parts
    How to deburr rubber products
    What to use for deburring rubber products
    How to quickly remove burrs from rubber products
    Rubber deburring process
    Rubber product polishing process
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Polishing technology and method of powder metallurgy products

How to chamfer, deburr and descale the powder metallurgy parts?

Powder metallurgy is an advanced industrial technology that uses metal powder (or a mixture of metal powder and non-metallic powder) as raw material, and forms various types of products through forming and sintering. It is very suitable for mass production. In addition, some materials and complex parts that cannot be prepared by traditional casting methods and machining methods can also be manufactured using powder metallurgy technology, so it has received much attention from the industry. Do you know what kind of finishing and polishing process powder metallurgy products need to go through to obtain a satisfactory surface effect? ​​In this case, we will share a process technology and method for chamfering, deburring, descaling, polishing and brightening of powder metallurgy gear parts. This polishing solution is also suitable for the surface polishing of powder sintered sprockets, bushings, structural parts, 3D printing products and metal powder injection molding products.

    • jerrylu
    • 2024-06-03
    • 0 Comments

     

deburring,derusting and polishing effects of powder metallurgy gear parts

1. The surface of powder metallurgy gear parts before polishing
burrs and scale of powder metallurgy gear parts before polishing

Materials:

Iron-copper powder mixture

Appearance:

burrs on the edges of the teeth and grooves,
oxide scale on the surface

Shape:

gear

Size:

35*50MM

Pre-polishing process:

powder metallurgy

Post-polishing process:

packing

2. Requirements for polishing
  • chamfering of tooth edge, deburring of the grooves.
  • smooth and brighten surface, no burrs, no oxide scale.
3. Powder metallurgy gear parts polishing process details:
Process steps （1） rough deburring,chamfering,descaling （2） fine polishing （3） anti-rust drying
Machine and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Amplitude and speed highest speed highest speed highest speed
Tumbling media angle cut cylinder ceramic media spherical white corundum finishing media no
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid anti-rust liquid
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 30 minutes
Remark automatic separating and picking up, rinsing with water automatic separating and picking up, rinsing with water anti-rust liquid soaking, vibrating drying
4. Effect of powder metallurgy gear parts after finishing and polishing
powder metallurgy gear parts chamfering, deburring, descaling, polishing, brightening effect
chamfering, deburring, descaling, polishing, burnishing effect of powder metallurgy gear parts

5. Additional instructions
  • This powder metallurgy product is a small-sized workpiece, and the burrs are mainly concentrated on the the tooth edges. The daily processing quantity is large, so a vibrating finishing machine is used, and a heavy-cutting angle cut cylinder deburring tumbling media is used for rough finishing. The sharp corner of angle cut cylinder can reach into the grooves between the tooth edges to remove burrs and chamfer.
    Fine polishing and brightening is also achieved by using a vibratory polishing machine, with the high-hardness, light-cutting spherical white corundum finishing media for fine finishing, which can perform micro-cutting, further reduce roughness, and improve surface brightness.
  • Because the product processing quantity is large, the product separating can be done by using vibratory separator to improve efficiency.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in a rust inhibitor 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 surface chamfering, deburring, descaling, polishing and brightening of a powder metallurgy gear component.
  • This process solution is also suitable for surface polishing of powder metallurgy sprockets, bushings, structural parts, 3D printing products and metal powder injection molding products.

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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