Thermoset Molding

Product Description

Key Aspects of Thermoset Molding
Materials:
Thermosetting Polymers: These include epoxies, phenolics, polyesters, and silicones. These materials undergo a chemical reaction when heated that causes them to harden into a set shape.
Reinforcements: Often, thermosets are reinforced with materials such as glass fibers, carbon fibers, or aramid fibers to enhance their mechanical properties.
Process:
Mixing and Preparation: The thermosetting polymer is mixed with any necessary additives and fillers to form a compound. This compound is then partially polymerized to a stable, uncured state often referred to as “B-stage”.
Molding: The compound is placed into a mold. Several molding techniques can be used:
Compression Molding: The compound is placed in an open, heated mold cavity. The mold is closed, and heat and pressure are applied to shape and cure the material.
Transfer Molding: The compound is preheated and then forced into a closed mold through a transfer chamber. This process allows for more intricate shapes and is used for more complex parts.
Injection Molding: Similar to thermoplastic injection molding, but for thermosets. The compound is heated and injected into a mold where it cures.
Curing: The material undergoes a curing process where it is permanently set. This is typically done by applying heat, which activates the chemical reaction that cross-links the polymer chains.
Cooling and Demolding: After curing, the mold is cooled, and the solidified part is removed.
Advantages:
Durability: Thermoset materials are highly durable and resistant to heat, chemicals, and wear.
Dimensional Stability: Once set, these materials maintain their shape and do not deform under stress.
Cost-Effective: For high-volume production runs, thermoset molding can be very cost-effective due to the relatively low cost of raw materials and the ability to produce complex shapes without extensive machining.
THERMOSET TRANSFER MOLDING Applications:
Automotive Parts: Components like brake pistons, distributor caps, and electrical housings.
Electrical and Electronics: Insulators, circuit breakers, and connectors.
Household Items: Cookware handles, appliance housings, and adhesives.
Industrial Equipment: Gears, pump components, and machine parts that require high strength and resistance to environmental factors.
Challenges:
Processing Complexity: The curing process needs precise control over temperature and pressure.
Waste Management: Once cured, thermosets cannot be remelted or reshaped, leading to potential waste disposal issues.
Tooling Costs: High initial costs for tooling and molds, although these costs are offset over large production runs.

Basic Information

About Us

WHO WE ARE
WIT MOLD is a very professional mould design and mould maker located South of China, certified ISO2009:2015 international quality standard. We started to build the complete molds since 2011, specializing in manufacturing different types of injection moulds for exporting worldwide mainly North America and Europe?including:

Conventional custom plastic molds
Precision injection moulds
Insert molding tools
High cavitation injection molds
Mold making for large components
Two Shot molds / 2K molds/ Bi-injection moulds
Unscrewing molds
Gas assist moulds
Injection structural foam molds
Special structural moulds
Thermoset molds
Die casting tools

OUR TIMELINE
2008
Established as a CNC machining shop, machining many kinds of mold components for cores, cavities, and others.

2011
Set up a professional mold shop, major made molds for some trading companies and agents, the amount of all the employees is about 50.

2013
Started to establish the first international sales team. The amount of all the employees is about 60.

2014
Established the second international sales team. The amount of all the employees is about 70. Passed ISO9001:2008 certification.

2015
Expanded our equipment and moved our facility to the current industry park at GongMing town of Shenzhen.The amount of all the employees was growing up to 80 .

2016
In order to make WIT MOLD more competitive for some simple molds in the market, also to expand our capacity, we cooperated with one smaller mold factory near our own facility as our first strategic partner.

2017
We cooperated with the second smaller mold factory near our own facility as our second strategic partner.

2018
1. Imported new high-speed CNC to increase machining efficiency and precision.
2. Imported 5 new injection machines for mold trial and small production in house. WIT MOLD has stable 80 employees, and the yearly molds we made is about 280320 sets.

Our website:witmold.com

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