Powder flattening device for dry pressing large-size laser transparent ceramic green bodies

A laser-transparent, large-scale technology, applied in the direction of supply devices, manufacturing tools, etc., can solve the problems of evenly paving ceramic powder and uneven densification of green bodies

Inactive Publication Date: 2015-08-19
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problem of uneven densification of dry-pressed ceramic green bodies in the preparation of large-size laser transparent ceramics, especially the problem that the ceramic powder cannot be evenly paved in a large-size mold by shaking the mold, the present invention provides A powder smoothing device for dry pressing large-size laser transparent ceramic green bodies, which can simply and quickly realize ceramic powder evenly spread in large-size molds

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Powder flattening device for dry pressing large-size laser transparent ceramic green bodies
  • Powder flattening device for dry pressing large-size laser transparent ceramic green bodies
  • Powder flattening device for dry pressing large-size laser transparent ceramic green bodies

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Such as figure 2 As shown, it is a schematic diagram of the specific use of the combined mold 7 of the present invention. First, about 130g of laser transparent ceramic powder is poured into a mold with a diameter of 100mm; the PVC transparent A4 film with a thickness of 0.3mm is cut into a size of 99.5mm× 20mm rectangular flattening plate 4, then insert the flattening plate 4 into the clamping groove 5 at a symmetrical position in the middle and clamp it; place the device of the present invention on the mold, rotate the handle 2, and adjust the height of the handle bar 3 properly until it is in the mold The laser transparent ceramic powder is completely evenly spread; after that, the mold can be closed and pressed into tablets to obtain a large-sized and high-quality laser transparent ceramic green body with uniform internal density, and then go through sintering, annealing, polishing and other processes. Obtain high-quality large-scale laser-transparent ceramics.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Widthaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a powder flattening device for dry pressing large-size laser transparent ceramic green bodies. The powder flattening device comprises a cantilever, a handle, a handle rod, a flattening plate, a clamp groove and rubber rings, wherein one end of the handle rod is connected with the handle, the other end of the handle rod is connected with one side of the clamp groove, the handle rod penetrates the cantilever, the rubber rings are located on two sides of the cantilever, and the flattening plate is fixed in the clamp groove. The powder flattening device has the advantages the device is beneficial for the dry pressing of large-size laser transparent ceramic green bodies; the device is disposed on a die, powder in the large-size die can be fast and evenly flattened by rotating the handle, the powder can be evenly flatly laid, the problem of uneven compacting during the dry pressing due to uneven powder laying is solved, and the problems that samples crack during demoulding and macroscopic large air holes formed in the sintered ceramic samples are further solved.

Description

technical field [0001] The invention belongs to the technical field of ceramic molding, and in particular relates to a special device required for smoothing powder during the dry pressing molding process of large-size laser transparent ceramics. Background technique [0002] In 1995, Japanese scientists Ikesue et al. (Ikesue, A.; Kinoshita, T.; Kamata, K.; Yoshida, K. Fabrication and optical properties of high-performance polycrystalline Nd: YAG ceramics for solid-state lasers.J.Am.Ceram .Soc.1995, 78, 1033–1040) prepared the scattering loss as low as 0.009cm -1 Nd: YAG laser transparent ceramics, the measurement results of its refractive index, thermal conductivity, hardness and other physical properties show that Nd: YAG laser transparent ceramics are similar to Nd: YAG single crystals, and the world's first laser diode pump was developed Pu's transparent ceramic laser achieves a slope efficiency of 28%. Since then, the research on laser transparent ceramic materials has...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B28B13/02
CPCB28B13/0295
Inventor 余盛全康彬敬畏胥涛
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap