Insulated Cup Body Mold Technology and Practical Experience (Part 3)

A cup holds stories, and life carries warmth. Hello everyone, "Dong Dong's Cup Talk" is back! In the previous article, I invited Mr. Feng, our factory's plastic mold specialist, to share key considerations in plastic mold manufacturing. http://www.zhanyict.com/en/ProductsDetail-VB-10506.htmlToday, I've asked Mr. Ding, our metal stamping mold expert, to continue discussing insulated cup body mold technologies and practical insights. Given the depth of the topic, I'll break it down into multiple parts.

III. Four Critical Pitfalls in Stainless Steel Mold Development

1. Material Selection Mistakes

- Common Error: Using Cr12MoV instead of SKD11 to cut costs, resulting in punch corner chipping after just 30,000 cycles (¥60,000 loss).

- Solution: http://www.zhanyict.com/en/ProductsDetail-VB-10506.htmlCritical components must use imported steels like Hitachi or ASSAB.

2. Poor Lubrication Design

- Common Error: Omitting nano-oil grooves in the die, causing scratches on cup surfaces (100,000 rejected pieces in one batch).

- Solution: http://www.zhanyict.com/en/ProductsDetail-VB-10506.htmlMandatory adoption of pulsed lubricant injection systems (flow precision: 0.1ml/s).

3. Heat Treatment Failures

- Failure Case: A mold factory's 20°C quenching temperature deviation slashed die lifespan from 500,000 to 50,000 cycles.

- Golden Standard: http://www.zhanyict.com/en/ProductsDetail-VB-10506.htmlSKD11 requires 1020°C oil quenching + cryogenic treatment (-196°C × 2h).

4. Vacuum Brazing Deformation

- Double-Layer Cup Challenge: Brazing at 700°C often causes excessive ovality (tolerance: ≤0.1mm).

- Innovation:http://www.zhanyict.com/en/ProductsDetail-VB-10506.htmlWater-cooled positioning fixtures reduce deformation by 80%.

(To be continued in upcoming parts...)