Resins For Making Mould & Core
How to use: – First take Dry silica and add Silicate base binder 4 to 5 % of sand for making moulds and cores.Mixing can be done with help of sand mixing machine it can be processed common mixtures as we as on continuous mixing devices. in this process the sand molding mixture is hardened by blowing co2 gas over the mold.
Applications:- This process is ideal where speed and flexibility is the prime requirement. Moulds and cores of a varied sizes and shapes can be molded instantly by this process.
A Single component addition which dries at room temperature without any heating. KORSET is compatible even with sand having high clay content which also is a definite advantage in foundries where the cores are made with River Sand. KORSET however having long stripping time, solid Mould & Core can made easily.
Product Specification : Appearance – Dark Brown Liquid resin
Product Addition Cycle :
1.Fist take dry Sand – 100 Parts
2.Add KORSET – 3 to 3.5% of sand
Advantages :
1. Single component addition easy to use & defect free castings.
2. Cored surface have For excellent finish & in many cases required no cleaning.
3. Total absence of moisture eliminates, defects like pinholes, blows from castings.
4 Mould & Cores made with KORSET, Save lots of labor cost .
Product Specification:
- Part “A” – Binder
- Part “B” – Accelerator
- Part “C” – Hardener
Product Addition Cycle:
- First take dry Wash Silica sand – 100 Parts
- Part ‘A’ Binder – 0 to 2.5%
- Part ‘B’ Accelerator – 5 to 10% Of Binder
- Part ‘C’ Hardener – 20 to 25% Of Binder
Advantages:
- Requires no baking. Various size mould and core made with ease ,completely self-curing system.
- Does not involve any unpleasant fumes.
- Can tolerate clay percentages up to 2%.
- Pleasant working properties akin to oil bonded sand.
- Cores strip cleanly. Excellent Break down properties.
- Even intricate cores can be made with ease and accuracy.
- cored sections are clean and free from sand fusion.
Product Specification:
- F-Set alkaline phenolic Resin
- Catalyst-ES
Production Addition Cycle:
- First take dry Wash Silica Sand – 100 Parts
- Add Part – 2 Catalyst-ES -20 to 22% of Resin
- Finally Add Part – 1 F-Set Resin -1.8 to 2.5% of Sand
Advantages:
- F-Set is ideal for consistent and faster production line.
- Collapsibility is very Good, Lowest Gas evolution, offer reclaimability.
- Excellent casting surface, High Productivity & rapid strength development, Long core storage life.
- Easy Stripping from the pattern. No sticking.
- No Casting defects with steel casting (Free from veins, erosions & hot tears) due to excellent high temperature properties superior to other no bake resins.
KORTEL 75 (PREMIUM CORE OIL)
Premier quality core oil is an economical sand binder System. Cores prepared with Kortel-75 after baking at 180 degree Celsius for 90 minutes gives higher strength, even at lower percentage addition. Lowest gas evolution, Easy stripping and fast caring are added advantages.