Technique

Rubbers are elastomers that are composed of high polymers, compounding various synthetic rubbers, carbon black, sulfur, accelerant, and auxiliary to proceed different vulcanization systems to make molecules process cross-linking. That improves rubber products' elasticity, wear resistance, toughness, chemical resistance, solvent resistance, and acid/alkali resistance. The major production processes which LeeKuma does are extrusion and molding: temperature control extrusion machine, compression molding machine, and injection molding machine, which can produce continuous-length rubber hoses and strips, and rubber molding parts with precision.

Extrusion Process

Produce continuous hoses and strips to deliver liquid, air, and oil, and fit in irregular assembling parts.

Extrusion Description
Raw Material Inspection
Compound
Properties Check
Compounds Pre-shape
Tooling Setup
Extrusion
Vulcanization
Quality Assurance
Length Cut
Wash & Dry
Quality Control & Package
High Pressure Hose Description
Focus on Braiding Process
Different Strength of Yarns
Yarn Spinning
Weaving
Rubber Bonding
Cover Outer Hose
Quality Assurance
Water/ Air/ Oil Pressure Test
Submerging Check
Quality Control & Package
Molding Process

Put rubber into tooling to produce rubber molding parts, injection parts, and rubber parts with metal by rubber compression molding machine or injection molding machine. The characteristics of molding parts are complex structure, and precise dimensions which can be assembled into machine perfectly; rubber metal bonded parts enhance stiffness, and absorb vibration.

Molding Process Description
Raw Material Inspection
Compounds Pre-shape
Tooling Setup
Vulcanization
Deflashing
Post-curing
Quality Control
Quality Control
Molding Toolings
Rubber Compression Molding Machine
Rubber Injection Molding Machine
Post-Curing Oven
Quality Control
Quality Control
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