# CERAMIC-MOLDING

CERAMIC-MOLDING provides ceramic injection molding engineering knowledge, design-for-manufacturing guidance, process capabilities, and verified case studies.

## English pages
- [Ultra-Thin Wall + A-Grade Gloss, Coexisting](https://www.ceramic-molding.com/en/showcase/thin-wall-gloss): Ultra-Thin Wall + A-Grade Gloss, Coexisting
- [WP-01 · Why Black and White Zirconia Can't Share a Mold](https://www.ceramic-molding.com/en/whitepaper/dual-color-mold): Why can't two SKUs with identical geometry, differing only in black vs. white, share one mold?
- [Sink Mark](https://www.ceramic-molding.com/en/defects/sink-mark): Invisible before sintering - by the time you see it, the cost is already at its highest.
- [Wall-Thickness Range](https://www.ceramic-molding.com/en/capability/wall-thickness): How thin can we go - and why thinner isn't always better
- [Wall-Thickness Design](https://www.ceramic-molding.com/en/dfm/wall-thickness): The minimum wall thickness is set by the weakest stage of the process chain - not by the sintered material's final strength.
- [Internal-Wall Porosity Improvement](https://www.ceramic-molding.com/en/showcase/porosity-improvement): Internal-Wall Porosity Improvement
- [Black/White Dual-Color Matched Pair](https://www.ceramic-molding.com/en/showcase/dual-color): Black/White Dual-Color Matched Pair
- [Alumina Industrial Heat-Sink Part](https://www.ceramic-molding.com/en/showcase/alumina-thermal): Alumina Industrial Heat-Sink Part
- [Ultra-Small Precision Medical Part](https://www.ceramic-molding.com/en/showcase/medical-micro): Ultra-Small Precision Medical Part
- [Black Zirconia High-Gloss Part](https://www.ceramic-molding.com/en/showcase/black-zirconia): Black Zirconia High-Gloss Part
- [3D Surface + Assembly Mating Face](https://www.ceramic-molding.com/en/showcase/3d-surface): 3D Surface + Assembly Mating Face
- [High Depth-to-Diameter Cavity](https://www.ceramic-molding.com/en/showcase/deep-cavity): High Depth-to-Diameter Cavity
- [Dense Micro-Hole Array](https://www.ceramic-molding.com/en/showcase/micro-hole-array): Dense Micro-Hole Array
- [Showcase](https://www.ceramic-molding.com/en/showcase): Verified ceramic injection molding case studies.
- [WP-06 · Material Selection for Wireless-Connected Devices: Ceramic's RF Advantage](https://www.ceramic-molding.com/en/whitepaper/rf-performance): For wireless-connected device housings, why does ceramic have a real, measurable RF-performance advantage over metal?
- [WP-05 · A Three-Round Gate-Iteration Study                      in CIM Distortion Control](https://www.ceramic-molding.com/en/whitepaper/gate-optimization): Why do open-frame structures always warp toward the gate side after CIM sintering - and how did three independent gate-plan iterations take yield from 0% to 100%?
- [WP-04 · Corner Design & Drop Reliability](https://www.ceramic-molding.com/en/whitepaper/corner-design): Why does ceramic drop-test failure almost always start at a corner - and how do you design around it?
- [WP-03 · The Conditions Behind ±0.05mm](https://www.ceramic-molding.com/en/whitepaper/tolerance-conditions): Under what conditions can ±0.05mm be stably achieved - and does real production data actually hold up?
- [WP-02 ·  Weld-Line Formation and Layered Solutions](https://www.ceramic-molding.com/en/whitepaper/weld-line-solutions): Large holes or dense hole arrays split the melt flow into two independent streams that rejoin behind the hole, forming a weld line. This is harder to manage in ceramic CIM than in plastic injection molding — why is it harder, can it be eliminated, and if not, how do you minimize the impact?
- [The Boundary of High-Impact Hard-Surface Testing](https://www.ceramic-molding.com/en/defects/hard-surface): Ceramic failure rates rise noticeably in hard-surface impact testing - a real physical boundary, not a defect.
- [Open-Frame Warpage](https://www.ceramic-molding.com/en/defects/open-frame): Open-frame warpage isn't a process failure - it's a green-body density gradient, amplified by geometry with no sidewall constraint.
- [Corner Cracking](https://www.ceramic-molding.com/en/defects/corner-crack): Adding a fillet radius cuts corner cracking by 80% - real drum-drop test data.
- [Gamma-Sterilization Discoloration](https://www.ceramic-molding.com/en/defects/gamma): Discoloration after gamma sterilization is normal and doesn't affect mechanical performance - color recovers after a 300°C treatment.
- [Pinhole](https://www.ceramic-molding.com/en/defects/pinhole): Pinhole
- [Chipping](https://www.ceramic-molding.com/en/defects/chipping): Chipping
- [Color Stain](https://www.ceramic-molding.com/en/defects/color-stain): Color Stain
- [Weld Line](https://www.ceramic-molding.com/en/defects/weld-line): Weld lines are nearly unavoidable in dense hole-array parts - the real question is where they land, and whether they can be moved off the critical area.
- [Articles](https://www.ceramic-molding.com/en/defects): Engineering diagnosis for ceramic molding quality.
- [Verification Methodology](https://www.ceramic-molding.com/en/capability/verification): We don't rely on experience-based judgment - every critical process step has a recordable, traceable verification method
- [Medical Device-Specific Capability](https://www.ceramic-molding.com/en/capability/medical): What ceramic CIM can and cannot do in medical devices
- [Material Systems & Selection Framework](https://www.ceramic-molding.com/en/capability/materials): Zirconia or alumina - it's not about which is "better," it's about which fits your application
- [Surface-Finishing Capability](https://www.ceramic-molding.com/en/capability/surface): Ra 0.02μm is the conventional high-gloss floor - for higher-grade surface precision, we also have real verified data.
- [Formable Geometric Capability](https://www.ceramic-molding.com/en/capability/geometry): Suggestions for CIM processing, such as dimensional ceiling, minimum hole diameter, depth-to-diameter limits.
- [Tolerance Capability Data](https://www.ceramic-molding.com/en/capability/tolerance): Let the measured data speak: 10 samples measured by OGP, 74 dimensions, 100% pass rate
- [Threads & Fastening](https://www.ceramic-molding.com/en/dfm/threads): Ceramic can't be tapped after sintering, and molded internal threads have low yield - in most cases, a metal insert is the more sensible answer.
- [Curved Surfaces & Distortion Control](https://www.ceramic-molding.com/en/dfm/curved-surface): Curved parts experience both gravity and thermal-gradient effects during sintering - controllable, but only with advance planning.
- [Surface-Quality Zoning](https://www.ceramic-molding.com/en/dfm/surface): A-grade and B-grade faces must be marked on the drawing - cosmetic grade determines gate location, and gate location determines the whole mold design direction.
- [Undercuts & Demolding](https://www.ceramic-molding.com/en/dfm/undercut): Green-body strength at demolding is far below the sintered finished part's - what you think of as "hard ceramic" behaves like a wet sand structure at that moment.
- [Gate Design](https://www.ceramic-molding.com/en/dfm/gate-design): Gate location determines flow direction and green-body density. Mold flow simulation can predict possibilities in design, however, the actual results are only known after sintering.
- [Tolerance & Dimensioning](https://www.ceramic-molding.com/en/dfm/tolerance): ±0.05mm is the output of four conditions being met simultaneously - change any one condition and the achievable precision changes with it.
- [DFM Guide](https://www.ceramic-molding.com/en/dfm-guide): Design-for-manufacturing guidance for ceramic injection molding.
- [About](https://www.ceramic-molding.com/en/about): Cermatec China material technology and collaboration.
- [Feasibility](https://www.ceramic-molding.com/en/feasibility): Ask for an early ceramic molding feasibility review.
- [Home](https://www.ceramic-molding.com/en): CERAMIC-MOLDING provides ceramic injection molding, DFM assessment, capability data, and real project evidence.
- [Whitepapers](https://www.ceramic-molding.com/en/whitepaper): Technical whitepapers on ceramic materials and production.
- [Process](https://www.ceramic-molding.com/en/capability): Ceramic injection molding process capabilities.
- [DFM Assessment](https://www.ceramic-molding.com/en/dfm-assessment): Submit design files for a ceramic molding review.

## Chinese pages
- [内壁气孔率改进案例](https://www.ceramic-molding.com/zh/showcase/porosity-improvement): 内壁气孔率改进案例
- [黑白双色配对件](https://www.ceramic-molding.com/zh/showcase/dual-color): 黑白双色配对件
- [氧化铝工业散热件](https://www.ceramic-molding.com/zh/showcase/alumina-thermal): 氧化铝工业散热件
- [极小精密医疗件](https://www.ceramic-molding.com/zh/showcase/medical-micro): 极小精密医疗件
- [黑色氧化锆高光件](https://www.ceramic-molding.com/zh/showcase/black-zirconia): 黑色氧化锆高光件
- [三维曲面 + 装配配合面](https://www.ceramic-molding.com/zh/showcase/3d-surface): 三维曲面 + 装配配合面
- [高深径比内腔](https://www.ceramic-molding.com/zh/showcase/deep-cavity): 高深径比内腔
- [密集微孔阵列](https://www.ceramic-molding.com/zh/showcase/micro-hole-array): 密集微孔阵列
- [极细薄壁 + A级高光面共存](https://www.ceramic-molding.com/zh/showcase/thin-wall-gloss): 极细薄壁 + A级高光面共存
- [真实案例](https://www.ceramic-molding.com/zh/showcase): 真实陶瓷 CIM 项目中的结构约束、工艺解法和量化结果。
- [WP-06 · 无线连接设备的外壳选材：陶瓷的射频性能优势](https://www.ceramic-molding.com/zh/whitepaper/rf-performance): 无线连接设备的外壳，为什么陶瓷在射频性能上比金属有真实、可观的优势？
- [WP-05 · 三轮浇口迭代优化的CIM变形控制研究](https://www.ceramic-molding.com/zh/whitepaper/gate-optimization): 开环结构（U形槽、C形环、开口框架）在CIM成型后为什么总是朝浇口方向翘曲--三轮独立的浇口方案迭代，如何把良率从0%做到100%？
- [WP-04 · 拐角设计与跌落可靠性](https://www.ceramic-molding.com/zh/whitepaper/corner-design): 陶瓷件跌落测试失效，为什么几乎总是从拐角开始--从设计上怎么规避？
- [WP-03 · ±0.05mm的条件](https://www.ceramic-molding.com/zh/whitepaper/tolerance-conditions): ±0.05mm这个数字，在什么条件下能稳定实现，真实量产数据能不能扛得住？
- [WP-02 · 熔接线/汇胶线的完整机理与分层解决方案](https://www.ceramic-molding.com/zh/whitepaper/weld-line-solutions): 大孔或密集孔阵结构会把熔体分流成两股独立料流，绕孔汇合后形成熔接线。这在陶瓷CIM里比在塑料注塑里更难处理--为什么更难，能不能消除，如果不能消除，怎么把影响降到最低？
- [WP-01 · 黑白氧化锆为何不能共模](https://www.ceramic-molding.com/zh/whitepaper/dual-color-mold): 为什么外形完全相同的产品黑白两色，无法共用一套模具？
- [高冲击硬地测试的边界](https://www.ceramic-molding.com/zh/defects/hard-surface): 陶瓷在硬质地面冲击测试中的失败率会明显上升——这是真实的物理边界，不是缺陷。
- [开环结构翘曲](https://www.ceramic-molding.com/zh/defects/open-frame): 开环结构的翘曲不是工艺问题，是生坯密度梯度被放大的物理结果。
- [拐角开裂](https://www.ceramic-molding.com/zh/defects/corner-crack): 增加R角，拐角开裂降低80%——这是真实滚筒跌落测试的数据。
- [Gamma灭菌变色](https://www.ceramic-molding.com/zh/defects/gamma): Gamma灭菌后陶瓷变色是正常现象，不影响力学性能——300°C高温处理后颜色可恢复。
- [针孔](https://www.ceramic-molding.com/zh/defects/pinhole): 烧结后零件表面出现点状微小孔洞。
- [缺口](https://www.ceramic-molding.com/zh/defects/chipping): 零件边缘、棱角、细节特征出现局部材料缺失。
- [色斑](https://www.ceramic-molding.com/zh/defects/color-stain): 烧结后零件表面出现颜色异常区域。
- [熔接线/汇胶线](https://www.ceramic-molding.com/zh/defects/weld-line): 熔接线在密集孔阵零件里几乎不可避免——问题是它在哪里，能不能转移到非关键区。
- [缩痕/缩水](https://www.ceramic-molding.com/zh/defects/sink-mark): 缩痕在烧结前不可见——等你看见的时候，是成本已经最高的时刻。
- [质量诊断](https://www.ceramic-molding.com/zh/defects): 陶瓷成型质量问题的工程诊断与改进方法。
- [验证方法体系](https://www.ceramic-molding.com/zh/capability/verification): 我们不依赖经验判断来验证质量——每一个关键工艺节点都有可记录、可追溯的验证方法
- [医疗器械专项能力](https://www.ceramic-molding.com/zh/capability/medical): 陶瓷CIM在医疗器械里能做什么，不能做什么
- [材料体系与选材框架](https://www.ceramic-molding.com/zh/capability/materials): 氧化锆还是氧化铝——不是哪个更好，是哪个更合适你的应用
- [表面处理能力](https://www.ceramic-molding.com/zh/capability/surface): Ra 0.02μm是常规高光下限——更高等级的表面精度，我们也有真实验证数据
- [可成型几何能力](https://www.ceramic-molding.com/zh/capability/geometry): 尺寸上限、孔径下限、深径比边界等适合CIM加工的建议。
- [公差能力数据](https://www.ceramic-molding.com/zh/capability/tolerance): 实测数据说话：10件OGP测量，74个尺寸，100%合格
- [壁厚能力范围](https://www.ceramic-molding.com/zh/capability/wall-thickness): 我们能做多薄——以及为什么不是越薄越好
- [螺纹与固定连接](https://www.ceramic-molding.com/zh/dfm/threads): 陶瓷烧结后无法攻螺纹，成型内螺纹良率低——大多数情况下，金属镶件方案更合理。
- [曲面与变形控制](https://www.ceramic-molding.com/zh/dfm/curved-surface): 曲面产品件在烧结过程中受重力与厚度不均产生的热梯度双重作用极易产生变形。为控制变形，必须在设计阶段提前规划。
- [表面质量分区](https://www.ceramic-molding.com/zh/dfm/surface): A级面和B级面必须在图纸上标注——外观等级决定浇口位置，浇口位置决定整套模具设计方向。
- [倒扣与脱模](https://www.ceramic-molding.com/zh/dfm/undercut): 生坯脱模时强度远低于烧结后成品——你以为的“硬陶瓷”，在脱模那一刻像湿沙堆。
- [浇口设计](https://www.ceramic-molding.com/zh/dfm/gate-design): 浇口位置决定成型时熔融材料流动方向和生坯密度——设计阶段可以用模流分析来模拟可能性，但实际表现只能烧结后才知道。
- [公差与尺寸标注](https://www.ceramic-molding.com/zh/dfm/tolerance): ±0.05mm是三个条件同时满足时的输出——任何一个条件改变，精度就改变。
- [壁厚设计](https://www.ceramic-molding.com/zh/dfm/wall-thickness): 壁厚的选择是一个多条件牵制的系统性问题，是由工艺链最脆弱的阶段决定。
- [DFM 设计指南](https://www.ceramic-molding.com/zh/dfm-guide): 面向陶瓷注射成型的壁厚、公差和烧结风险设计指南。
- [免费可行性问询](https://www.ceramic-molding.com/zh/feasibility): 提交项目约束，获得早期工艺可行性建议。
- [关于我们](https://www.ceramic-molding.com/zh/about): Cermatec China 的材料技术、工艺能力和项目协作信息。
- [首页](https://www.ceramic-molding.com/zh): CERAMIC-MOLDING 提供精密陶瓷注射成型、DFM评估、工艺能力数据与真实项目案例。
- [DFM 评估](https://www.ceramic-molding.com/zh/dfm-assessment): 提交设计资料，获取陶瓷注射成型可行性判断。
- [白皮书](https://www.ceramic-molding.com/zh/whitepaper): 陶瓷材料、工艺和量产判断的技术资料。
- [工艺能力](https://www.ceramic-molding.com/zh/capability): 从喂料、注射、脱脂到烧结的陶瓷 CIM 工艺能力。

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