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GB/T 45871-2025Additive manufacturing — Alumina slurry for vat photopolymerization of ceramics (English PDF)

增材制造陶瓷立体光固化用氧化铝浆料

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 1, 2025

Implementation date

February 1, 2026

Scope

GB/T 45871-2025 is the English-translated version of 增材制造陶瓷立体光固化用氧化铝浆料.

GB/T 45871-2025 is the Chinese national standard covering the alumina slurry a ceramic vat photopolymerisation machine prints from — the alumina powder, photosensitive resin, dispersant and photoinitiator in it, the preparation, the solid loading and the technical requirements, the test methods with the solid content and curing index procedures, the curing depth, the inspection rules, and the edge curing error, since light scattered by the powder cures slurry outside the spot and takes the part out of tolerance. First edition, with the cold spray process standard GB/T 45858-2025. Under the China Machinery Industry Federation. In force from 1 February 2026. Issued on 1 August 2025, it has been in force since 1 February 2026.

Document preview — GB/T 45871-2025

National Standard of the People's Republic of China

ICS: 25.030
Classification: Q 32

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Composition and Materials2
5 Preparation2
6 Technical Requirements2
7 Test Method3
8 Inspection Rules4
9 Marking, packaging, transportation, storage and accompanying documents4
Appendix A (Normative) Solid Content Test6
Appendix B (Normative) Curing Index Test7

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the China Machinery Industry Federation.

This document was jointly issued by the National Technical Committee on Additive Manufacturing Standardization (SAC/TC562) and the National Technical Committee on Industrial Ceramics Standardization (SAC/TC194) jointly under the jurisdiction of the Commission.

This document was drafted by: Xi'an National Research Institute of Additive Manufacturing Co., Ltd., China Machinery Productivity Promotion Center Co., Ltd., Shandong Industrial Ceramics Co., Ltd.

Porcelain Research and Design Institute Co., Ltd., Shanghai Shuzao Electromechanical Technology Co., Ltd., Northwestern Polytechnical University, Xi'an Jiaotong University, Xi'an Guohong Tianyi Intelligent Technology Co., Ltd., Wuhan Intailai Laser Technology Co., Ltd., Qingdao University of Technology, Dongguan Huici Intelligent Printing Technology Co., Ltd., Zhejiang Titanium New Materials Co., Ltd., Wuhan Zeqing Technology Co., Ltd., Jiaxing Raoji Technology Co., Ltd., Qinghai Shengnuo Optoelectronics Technology Co., Ltd.

Technology Co., Ltd., Shenzhen Collaborative Innovation High-Tech Development Co., Ltd., Shanghai Liantai Technology Co., Ltd., Jingdezhen Silver Iridium Materials Co., Ltd.

Co., Ltd., Liaoning Light Industry Science Research Institute Co., Ltd., Yangzhou Zhongtianli New Materials Co., Ltd., Shenzhen University, Shenzhen Jinshi 3D Printing Technology Co., Ltd., Beijing Wanwei Additive Technology Co., Ltd., Shanghai Electric Group Co., Ltd. Central Research Institute, China Machinery Research Institute Standard Technology Research Institute (Beijing) Co., Ltd., Shenzhen Qiyu Technology Co., Ltd., and Kangshuo (Shanxi) Low Stress Manufacturing System Technology Research Institute Co., Ltd.

The main drafters of this document are: Liu Rongzhen, Li Haibin, Guo Wenhua, Chen Changzhu, Zhao Yi, Lin Xin, Shi Jian, Cai Zhixiang, Lan Hongbo, Chen Hui, Xu Haiman, Zhu Bing, Li Zhaoqing, Wang Weiqu, Liu Jianghua, Lu Qing, Yu Qingxiao, Li Gang, Xue Jian, Li Xianping, Lu Bingheng, Chen Zhangwei, Wang Di, Sheng Bin, Fan Enxiang, Zhu Pengfei, Wang Xiang, and Hu Fan.

Alumina slurry for additive manufacturing of ceramic stereolithography

1 Scope

This document specifies the composition and materials, preparation methods, technical requirements, test methods, inspection specifications of alumina slurry for ceramic stereolithography.

as well as marking, packaging, transportation, storage and accompanying documents.

This document applies to the production and inspection of alumina slurries for stereolithography of additively manufactured ceramics.

2 Normative references

GB/T 6680

GB/T 24487

GB/T 35351

GB/T 44149

GB/T 45765

3 Terms and Definitions

The terms and definitions defined in GB/T 35351 and the following apply to this document.

3.1 Alumina slurry

Alumina powder, photosensitive polymer material, dispersant, photoinitiator and other components determined according to performance are mixed in a certain proportion.

A liquid mixture that is measured and mixed.

3.2 Solid loading

The volume fraction of ceramic powder in ceramic slurry.

3.3 curing specifications

It is used to evaluate and control the curing effect of alumina slurry in the process of ceramic stereolithography, mainly including the curing of alumina slurry by light irradiation.

The curing depth and edge curing error formed after curing.

3.4 Curing depth

The Z-direction cross-sectional height of alumina slurry cured under a certain light irradiation during the ceramic stereolithography process.

3.5 edge curing error

The size and radiation intensity of the cured area outside the light spot outline caused by scattering and refraction of alumina slurry during the process of ceramic stereolithography The error between the sizes of the photographed areas.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 35351 · GB/T 44149 · GB/T 45765

Editions of GB/T 45871

Edition	Title	Revision	Status
GB/T 45871-2025	Additive manufacturing - Alumina slurry for vat photopolymerization of ceramics	current edition	Current

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