Heman Chen

An expert of Jewelry Development & Jewelry Manufacturing since 2010

[Heman Chen @chen_heman]

How To Get A Strong PVD Coating On Jewelry Cleaning, Sandblasting, Polishing,... #coatingtechnology https://t.co/irmyV2eGYl 来自 @Slideshare

[Heman Chen @chen_heman]

How Does PVD Coating Structure Affect Hardness, Adhesion, And Oxidation Resis... #adhesion #hardness https://t.co/Eam0cRwtrr 来自 @Slideshare

[Heman Chen @chen_heman]

How To Check PVD Coating Quality Thickness, Adhesion, Hardness, And Stress.pptx #adhesiontest https://t.co/1SKY7G3I9b 来自 @Slideshare

[Heman Chen @chen_heman]

Choosing the right PVD target matters. Titanium, chromium, aluminum & silicon targets affect jewelry color, hardness...
Tags:
#JewelleryBusiness #PVDCoating #JewelleryManufacturing #CustomJewellery #B2BJewellery

#blackcoatingjewelry https://t.co/atmwWbisCr 来自 @Slideshare

[Heman Chen @chen_heman]

Choosing the right jewelry metal affects pricing, MOQ, durability, stone setting and after-sales service. Gold = premium, silver = balanced, stainless steel = scalable & durable. Smart metal planning helps new brands grow faster.
https://t.co/GIHYSv49NP 来自 @Slideshare

[Heman Chen @chen_heman]

How Can I Tell If My Jewelry Quality Is Good Enough. Check plating, stone setting, polishing, clasp strength and finishing details.
Tags:
#JewelleryBusiness #JewelleryQuality #QualityControl #CustomJewellery #B2BJewellery https://t.co/K9PgI5I1pH 来自 @Slideshare

[Heman Chen @chen_heman]

How to Choose Jewelry Metal for Your New Business? Part 2 – Selection Guide f... Gold, silver or stainless steel? Each metal serves a different market.
https://t.co/9IgfN0P909 来自 @Slideshare

[Heman Chen @chen_heman]

How to Master Professional Shooting Techniques for Diamonds, Pearls, and Gold... #anglelightfinetuning https://t.co/1woF8JUZ0w 来自 @Slideshare

[Heman Chen @chen_heman]

Do You Want to Retouch Jewelry Photos Like Diamond Rings and Gold Necklaces i... #adobephotoshop https://t.co/5TZENkos2F 来自 @Slideshare

[Heman Chen @chen_heman]

How to Express Mood and Use Creative Thinking in Jewelry Commercial Photograp... #creativethinking https://t.co/6uosoed6Yy 来自 @Slideshare

[Heman Chen @chen_heman]

Want A Scratch-Resistant Jewelry Coating Without Pollution? How Does Magnetro... #depositiontechnology https://t.co/fbQn0hMlwt 来自 @Slideshare

[Heman Chen @chen_heman]

Need A Strong Gold-Color Coating For Custom Jewelry How Does Cathodic Arc Giv... #adhesion #goldcolor https://t.co/fdBnEfuiLj 来自 @Slideshare

[Heman Chen @chen_heman]

How To Get A Strong PVD Coating On Jewelry Cleaning, Sandblasting, Polishing,... #coatingtechnology https://t.co/irmyV2eGYl 来自 @Slideshare

[Heman Chen @chen_heman]

PVD coatings have dense columnar crystal structure. Coating hardness, adhesion strength, internal stress, flexural strength, fracture toughness, friction and wear performance, and oxidation resistance affect how long coating lasts. https://t.co/szxQNWhFlm

[Heman Chen @chen_heman]

Target selection matters for PVD coating. Targets include metal targets, alloy targets, ceramic compound targets. High purity, high density, fine grain size give good film. Titanium-aluminum targets (TiAlN) make rose gold color. https://t.co/Lo8V6Po60J

[Heman Chen @chen_heman]

Check PVD coating for delamination and color difference. Measure coating thickness by cross-section method, ball-cratering method, or XRF. Test adhesion by scratch, indentation, or ball-crater test. https://t.co/eMTWQbeJQe

[Heman Chen @chen_heman]

Picking the right metal for your jewelry brand is confusing. Gold, silver, or stainless steel? This guide breaks down 24K gold, 925 sterling silver, platinum, brass, and zinc alloy. Learn about casting, CNC machining, MOQ (gold from 1 piece), ... https://t.co/t5fAIcfgRn

[Heman Chen @chen_heman]

Picking the wrong metal kills your margins. This guide helps you choose based on your real budget and business model. Understand 925 silver vs 999, 304 vs 316 steel, and brass vs zinc alloy. Stop guessing. Start sampling smarter.

https://t.co/2msNgyPqFT

[Heman Chen @chen_heman]

Before PVD coating, you need cleaning to remove oil, rust, and dust. Use spray cleaning, ultrasonic, rinsing with deionized water, and drying. Remove burrs. Sandblasting with Al₂O₃ (corundum) cleans surfaces and fixes cobalt depletion. https://t.co/ir8pt1I0NN

[Heman Chen @chen_heman]

This post talks about vacuum, evaporation, and magnetron sputtering. These methods give high purity, dense coating, and good adhesion for jewelry. We use low temperature and argon gas. https://t.co/LEhLci8G0A