Check patentability & draft patents in minutes with Patsnap Eureka AI!

Injection type plasma spraying device for producing hydroxyapatite bioactivity coating

A technology of hydroxyapatite and spraying device, applied in the direction of coating, metal material coating process, melt spraying, etc., can solve the problems of uneven coating structure, reduce production efficiency, increase cost, etc., and achieve structural uniformity Good, improve production efficiency, easy to operate effect

Inactive Publication Date: 2008-08-27
SICHUAN UNIV
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The powder raw materials required for powder plasma spraying generally go through a series of tedious processes such as wet chemical synthesis, aging, spray drying, powder granulation and spheroidization, calcination, crushing, ball milling, and sieving. The completion cycle usually takes 4 -7 days, which not only increases the cost, but also reduces the production efficiency
In addition, traditional powder plasma spraying equipment also has the problem of uneven coating structure

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
  • Injection type plasma spraying device for producing hydroxyapatite bioactivity coating
  • Injection type plasma spraying device for producing hydroxyapatite bioactivity coating
  • Injection type plasma spraying device for producing hydroxyapatite bioactivity coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This example presses figure 1 The structural layout of the equipment is connected to the various components of the equipment used, and the B702 electronic peristaltic pump 1 (Tianjin Xieda Weiye Electronics Co., Ltd.) is used as the transmission power device of the suspension 3. The operating voltage of the plasma spraying equipment is 50 volts and the operating current is 450 A. , the inner diameter of the small-diameter conduit 19 is 50um, the distance between the titanium metal substrate 7 and the plasma torch 8 is 10cm, and the suspension is injected horizontally into the plasma flame 5 by adjusting the small-diameter conduit through the adjusting member.

[0050] First prepare the raw material hydroxyapatite suspension for spraying, according to the calcium-phosphorus molar ratio of 1.67, configure the calcium nitrate aqueous solution with a molar concentration of 1.6mol / L and the diammonium hydrogen phosphate aqueous solution with a molar concentration of 2.5mol / L;...

Embodiment 2

[0053] This example presses figure 1 The structural layout of the equipment is connected to the various components of the equipment used, and the B702 electronic peristaltic pump 1 (Tianjin Xieda Weiye Electronics Co., Ltd.) is used as the transmission power device of the suspension 3. At this time, the operating voltage of the plasma spraying equipment is 60 volts, and the operating current is 450 amps, the inner diameter of the small-diameter conduit 19 is 75um, the distance between the titanium metal substrate 7 and the plasma spray gun 8 is 10cm, and the small-diameter conduit injects the suspension into the plasma flame 5 horizontally.

[0054] First prepare the hydroxyapatite suspension, according to the calcium-phosphorus molar ratio of 1.67, configure the calcium nitrate aqueous solution with a molar concentration of 1.6mol / L and the diammonium hydrogen phosphate aqueous solution with a molar concentration of 2.5mol / L; The diammonium hydrogen phosphate aqueous solution...

Embodiment 3

[0057] This example presses figure 1 The structural layout of the equipment is connected to the various components of the equipment used, and the B702 electronic peristaltic pump 1 (Tianjin Xieda Weiye Electronics Co., Ltd.) is used as the transmission power device for the suspension 3. At this time, the plasma spraying equipment has an operating voltage of 50 volts and an operating current of 450 amps, the inner diameter of the small-diameter conduit 19 is 100um, the distance between the titanium metal substrate 7 and the plasma spray gun 8 is 10cm, and the small-diameter conduit injects the suspension into the plasma flame 5 horizontally.

[0058] First prepare the hydroxyapatite suspension, according to the calcium-phosphorus molar ratio of 1.67, configure the calcium nitrate aqueous solution with a molar concentration of 1.6mol / L and the diammonium hydrogen phosphate aqueous solution with a molar concentration of 2.5mol / L; The diammonium hydrogen phosphate aqueous solution...

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

No PUM Login to View More

Abstract

The invention relates to a suspending liquid injection type plasma spraying device which prepares hydroxyapatite bioactive coating and comprises a plasma ejection gun and also comprises a spraying raw material suspending liquid storage container, a suspending liquid transmission system and a suspending liquid injection system, wherein the suspending liquid storage container is a pressure tank or a container which is provided with the high energy ultrasonic oscillation function, the transmission system comprises a power transmitting device and a transmitting tube which is matched with the power transmitting device, a duct with small diameter in the injection system is installed on a holder which is connected with the plasma ejection gun through a regulating component, compressed air in the pressure tank in the power transmitting device or an electronic peristaltic pump injects the suspending liquid into the duct with the small diameter through the transmitting tube, the duct with the small diameter injects the suspending liquid to a high temperature region on the center of plasma flame directly and radially in a leaner type jet-flow mode, the hydroxyapatite bioactive coating with even structure is generated on the surface of a metal base, and the device of the invention is simple in structure and easy in operation, and saves the raw materials.

Description

technical field [0001] The invention relates to an injection type plasma spraying device for preparing hydroxyapatite bioactive coating, in particular to a new suspension injection type plasma spraying device for preparing hydroxyapatite bioactive coating, which belongs to biomedical material engineering technology equipment field. Background technique [0002] Hydroxyapatite has a chemical composition and crystal structure similar to the main minerals in human tissue bone and teeth, and is the main inorganic component of human bone tissue. At the same time, the excellent biological activity of hydroxyapatite enables it to form a chemical bond with human bone tissue, has good osteoconductivity, and has a certain induction effect on new bone growth, so it is a typical bioactive material. However, the mechanical properties of simple hydroxyapatite are poor, and its bending strength and fracture toughness are lower than those of human compact bone, so it is difficult to use in...

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): C23C4/10C23C4/04C23C4/134
Inventor 吴方宋磊肖严峰刘晓光黄毅吴尧陈继镛
Owner SICHUAN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com