Availability: | |
---|---|
Quantity: | |
Syringe Transfer Mold, also be known as Protective Cover Molding, Syringe Sleeve Mould, Silicone Cover Moulding and Syringe Cover Mold. Syringes are used for dustproof, anti-oil, water proof and other environment elements.
Syringe Transfer Mold's advantage is that it can produce structually complex coated products containing metal parts or other material parts. Transfer Molding's proce is much cheaper than the LSR Mold, and it can also produce complex silicone rubber parts with more uniform wall thickness than the products produced by the Compression Mold.
Syringe Transfer Mold Process
1. A piece of uncured rubber is placed into a portion of the mold.
2. The mold is closed up and under hydraulic pressure, the rubber is forced through a small hole into the cavity. The mold is held closed while the rubber cures.
3. The plunger is raised up and the transfer pad material is removed.
4. Mold is opened and the part can be removed.
Syringe Transfer Mold VS. Compression Molding & LSR Injection Molding
Syringe Transfer Mold VS. Compression Molding
1. Transfer Molding takes less time to perform.
The raw material used in compression molding doesn't have to be completely liquid it can be semi-solid. The semi-solid raw material can be injected or otherwise forced into the mold cavity by the plunger. This makes transfer molding faster than many other molding processes, particularly those that only support liquefied material.
2. Transfer Molding allows for higher tolerance.
This is due to the fact that transfer molding uses more pressure than compression molding. Both types of molding processes involve the use of pressurized raw material. With compression molding and transfer molding, the raw material is pressurized as it's injected into the mold cavity. Transfer molding, through, applies more pressure to the raw material, thereby allowing for higher dimensional tolerances.
Syringe Transfer Molding VS. LSR Injection Molding
1. Transfer Molding has high cavity count.
Transfer Molding typically has dozens of cavities, while LSR injection molding has only few cavities.
2.Transfer Molding has fewer restrictions on raw material.
The tranfer molding can produce rubber and silicone productions, while the LSR injection molding can only produce silicone productions.
3. Transfer Molding has lower molding cost.
LSR injection molding has more complex structure than transfer molding, so the molding cost is much higher than transfer molding.
Syringe Transfer Molding Advantages
1. Allows for the easy integration of inserts, such as metal components of electronic parts, into the molded product.
2. Allows for intricate designs with sharper edges, providing greater design flexibility compared to other molding methods.
3. Allows for producing parts with minimal or no burr, eliminating the need for additional deburr processes.
4. Allows for higher tolerances. Because it applies more pressure to the raw material, there by allowing for higher demensional tolerances.
5. Lower tooling and equipment costs, because simpler pot and plunger designs.
Syringe Transfer Molding Disadvantages
1. Material Wastage
Particularly during the preparation and transfer stages. This is promarily due to the use of sprue and overflow grooves, which can result in excess material that is not conductive to recycling thermosetting polymers into the process, further increasing production costs and environmental impact.
2. Slower production rate
Compared to injection molding, due to the additional steps involved in material preparation and transfer.
3. Air Trapping
Air can get trapped in the mold during the transfer process. This can lead to defects in the final product and require additional measures to ensure air is properly evacuated.
4. Complex molds
Since the design and mold tends to be complex, tooling can also become expensive.
5. Mold Maintenance
Inserted transfer tools require more mold maintenance than compression tools. Typically, inserts have to be taken out and reset to maintain movement overtime. Cleaning the tool can be time-comsuming, and sometimes special equipment like dry ice blasters are used to clean the intricate transfer insert.
Transfer Mold of Syringe Materials
NBR Syringe | Hardness: 40~90 Shore A |
Normal service temperature: -35℃~100℃ Low temperature resistance type: -55℃~100℃ High temperature resistance type: -30℃~125℃ | |
Advantages: excellent resistance to oil and non-polar solevents, excellent bonding properties, good mechanical properties and air tightness. | |
Disadvantages: weather resistance and ozone resistance is not strong. |
EPDM Syringe | Hardness: 30~90 Shore A |
Service temperature: -45℃~100℃ | |
Advantages: excellent heat resistance, weather resistance and ozone resistance. Good water resistance, electrical insulation resilicence, low temperature resistance. | |
Disadvantages: poor air tightness, self-viscosity and mutual viscosity, not resistane to non-polar solutions. |
Neoprene Syringe | Hardness: 40~95 Shore A |
Service temperature: -45℃~135℃ | |
Advantages: great resistance to exposure to the ozone, sunlight, oxidation, weather, oil, solvents, and several other material. It is also tear resistant, is durable, and easily adheres to metals and fabrics. | |
Disadvantages: poor resistance to strong oxidising acids, esters, ketone and certain hydrocarbons. |
CR Syringe | Hardness: 40~90 Shore A |
Service temperature: -40℃~100℃ | |
Advantages: ozone resistance, weather resistance, chemical resistance, aging resistance. Good tensile strength, elongation, adhesion flame retardancy. | |
Disadvantages: poor cold resistance and storage stability, not resistant to petroleum-based lubricants. |
FKM Syringe | Hardness: 50~90 Shore A |
Service temperature in Static Seal: -26℃~232℃ Service temperature in Dynamic Seal: -15℃~200℃ | |
Advantages: flame retardant, gas penetration resistance, ozone resistance, weather resistance, good aging resistance and resistance to chemical media. | |
Disadvantages: can not be used with molten or gaseous alkali metals. |
Syringe Transfer Mold Surface Treatment
Sand blasting adopts compressed air as the power to form a high-speed jet beam to spray the material (copper ore, quartz sand, emery, iron sand) to the surface of the mold to be treated at high speed, remove the residual burrs and rust, and make the surface of the mold smoother. The surface requirements of the different products are different, and sand of different thickness is used. At the same time, the mechanial properties of the workpiece surface are improved, the adhesion between it and the coating is increased, the durability of the coating is extended, and the flow and decoration of the coating are also beneficial.
The sand blasting meethod is simple, so the cost is low. However, if the mold surface is sandblasted twice or multiple times, the tool edge of the mold will be damaged, resulting in more rough edges and thicker parting lines.
In the process of using chemical liquid to corrode the mesh, the liquid soaks the mold for a fixed time chemical reaction, which is not affected by the surrounding environment. However, when the liquid corrodes the mesh, it needs to cover the non-texture area, which is difficult to operate. Moreover, the mesh life in thecorrosion area of the liquid is relatively short, which can easily lead to the rapid scrapping of the mold core.
For the small mesh area that needs to be treated, there will be a dividing line between the mesh in different areas, so that the surface pattern of the products is inconsistent. In this case, chemical corrosion is suitable for products that need to form a large area of mesh.
EDM treatment is easy to operate, short time, high precision, suitable for small area of mesh processing. And the electrical spark hit out of the mesh is harder. Usually 5 Axis Machine is used for processing, so the cost of EDM is the highest.
Syringe Transfer Mold, also be known as Protective Cover Molding, Syringe Sleeve Mould, Silicone Cover Moulding and Syringe Cover Mold. Syringes are used for dustproof, anti-oil, water proof and other environment elements.
Syringe Transfer Mold's advantage is that it can produce structually complex coated products containing metal parts or other material parts. Transfer Molding's proce is much cheaper than the LSR Mold, and it can also produce complex silicone rubber parts with more uniform wall thickness than the products produced by the Compression Mold.
Syringe Transfer Mold Process
1. A piece of uncured rubber is placed into a portion of the mold.
2. The mold is closed up and under hydraulic pressure, the rubber is forced through a small hole into the cavity. The mold is held closed while the rubber cures.
3. The plunger is raised up and the transfer pad material is removed.
4. Mold is opened and the part can be removed.
Syringe Transfer Mold VS. Compression Molding & LSR Injection Molding
Syringe Transfer Mold VS. Compression Molding
1. Transfer Molding takes less time to perform.
The raw material used in compression molding doesn't have to be completely liquid it can be semi-solid. The semi-solid raw material can be injected or otherwise forced into the mold cavity by the plunger. This makes transfer molding faster than many other molding processes, particularly those that only support liquefied material.
2. Transfer Molding allows for higher tolerance.
This is due to the fact that transfer molding uses more pressure than compression molding. Both types of molding processes involve the use of pressurized raw material. With compression molding and transfer molding, the raw material is pressurized as it's injected into the mold cavity. Transfer molding, through, applies more pressure to the raw material, thereby allowing for higher dimensional tolerances.
Syringe Transfer Molding VS. LSR Injection Molding
1. Transfer Molding has high cavity count.
Transfer Molding typically has dozens of cavities, while LSR injection molding has only few cavities.
2.Transfer Molding has fewer restrictions on raw material.
The tranfer molding can produce rubber and silicone productions, while the LSR injection molding can only produce silicone productions.
3. Transfer Molding has lower molding cost.
LSR injection molding has more complex structure than transfer molding, so the molding cost is much higher than transfer molding.
Syringe Transfer Molding Advantages
1. Allows for the easy integration of inserts, such as metal components of electronic parts, into the molded product.
2. Allows for intricate designs with sharper edges, providing greater design flexibility compared to other molding methods.
3. Allows for producing parts with minimal or no burr, eliminating the need for additional deburr processes.
4. Allows for higher tolerances. Because it applies more pressure to the raw material, there by allowing for higher demensional tolerances.
5. Lower tooling and equipment costs, because simpler pot and plunger designs.
Syringe Transfer Molding Disadvantages
1. Material Wastage
Particularly during the preparation and transfer stages. This is promarily due to the use of sprue and overflow grooves, which can result in excess material that is not conductive to recycling thermosetting polymers into the process, further increasing production costs and environmental impact.
2. Slower production rate
Compared to injection molding, due to the additional steps involved in material preparation and transfer.
3. Air Trapping
Air can get trapped in the mold during the transfer process. This can lead to defects in the final product and require additional measures to ensure air is properly evacuated.
4. Complex molds
Since the design and mold tends to be complex, tooling can also become expensive.
5. Mold Maintenance
Inserted transfer tools require more mold maintenance than compression tools. Typically, inserts have to be taken out and reset to maintain movement overtime. Cleaning the tool can be time-comsuming, and sometimes special equipment like dry ice blasters are used to clean the intricate transfer insert.
Transfer Mold of Syringe Materials
NBR Syringe | Hardness: 40~90 Shore A |
Normal service temperature: -35℃~100℃ Low temperature resistance type: -55℃~100℃ High temperature resistance type: -30℃~125℃ | |
Advantages: excellent resistance to oil and non-polar solevents, excellent bonding properties, good mechanical properties and air tightness. | |
Disadvantages: weather resistance and ozone resistance is not strong. |
EPDM Syringe | Hardness: 30~90 Shore A |
Service temperature: -45℃~100℃ | |
Advantages: excellent heat resistance, weather resistance and ozone resistance. Good water resistance, electrical insulation resilicence, low temperature resistance. | |
Disadvantages: poor air tightness, self-viscosity and mutual viscosity, not resistane to non-polar solutions. |
Neoprene Syringe | Hardness: 40~95 Shore A |
Service temperature: -45℃~135℃ | |
Advantages: great resistance to exposure to the ozone, sunlight, oxidation, weather, oil, solvents, and several other material. It is also tear resistant, is durable, and easily adheres to metals and fabrics. | |
Disadvantages: poor resistance to strong oxidising acids, esters, ketone and certain hydrocarbons. |
CR Syringe | Hardness: 40~90 Shore A |
Service temperature: -40℃~100℃ | |
Advantages: ozone resistance, weather resistance, chemical resistance, aging resistance. Good tensile strength, elongation, adhesion flame retardancy. | |
Disadvantages: poor cold resistance and storage stability, not resistant to petroleum-based lubricants. |
FKM Syringe | Hardness: 50~90 Shore A |
Service temperature in Static Seal: -26℃~232℃ Service temperature in Dynamic Seal: -15℃~200℃ | |
Advantages: flame retardant, gas penetration resistance, ozone resistance, weather resistance, good aging resistance and resistance to chemical media. | |
Disadvantages: can not be used with molten or gaseous alkali metals. |
Syringe Transfer Mold Surface Treatment
Sand blasting adopts compressed air as the power to form a high-speed jet beam to spray the material (copper ore, quartz sand, emery, iron sand) to the surface of the mold to be treated at high speed, remove the residual burrs and rust, and make the surface of the mold smoother. The surface requirements of the different products are different, and sand of different thickness is used. At the same time, the mechanial properties of the workpiece surface are improved, the adhesion between it and the coating is increased, the durability of the coating is extended, and the flow and decoration of the coating are also beneficial.
The sand blasting meethod is simple, so the cost is low. However, if the mold surface is sandblasted twice or multiple times, the tool edge of the mold will be damaged, resulting in more rough edges and thicker parting lines.
In the process of using chemical liquid to corrode the mesh, the liquid soaks the mold for a fixed time chemical reaction, which is not affected by the surrounding environment. However, when the liquid corrodes the mesh, it needs to cover the non-texture area, which is difficult to operate. Moreover, the mesh life in thecorrosion area of the liquid is relatively short, which can easily lead to the rapid scrapping of the mold core.
For the small mesh area that needs to be treated, there will be a dividing line between the mesh in different areas, so that the surface pattern of the products is inconsistent. In this case, chemical corrosion is suitable for products that need to form a large area of mesh.
EDM treatment is easy to operate, short time, high precision, suitable for small area of mesh processing. And the electrical spark hit out of the mesh is harder. Usually 5 Axis Machine is used for processing, so the cost of EDM is the highest.
Contact Us / Product Inquire / Liquid Injection Molding / LSR Molding / Article Inquire / FAQ / Download / Sign In / Register / Gallery / China Hot Products / Hot Products / Liquid Silicone Rubber Molding / Customized service / Request Quote / LSR Mold Design Guide / Liquid Silicone Rubber / Liquid Silicone Rubber Molding / Food Grade Liquid Silicone Rubber / Medical Grade Liquid Silicone Rubber / LSR Seal / Expo News / Industry News / Liquid Injection Molding - Better Silicone Project News / Silicone Materail Certifications / Silicone Umbrella Valves Drawing