Plaster mold dewaxing and roasting process

A roasting process, plaster mold technology, applied in the direction of manufacturing tools, metal processing equipment, casting and molding equipment, etc., can solve the problems of low energy consumption, many defects, etc., and achieve rapid dehydration, less internal defects, and good quality.

Inactive Publication Date: 2018-12-21
太仓黑龙智能工业科技有限公司
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a commonly used mold, plaster molds usually need to be roasted to strengthen the hardness. The existing plaster molds have many internal defects when roasted and are not energy-saving.

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
  • Plaster mold dewaxing and roasting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: a kind of gypsum mold dewaxing roasting process, comprises the steps:

[0019] S1: put into the dewaxing roasting furnace after drying the gypsum mold containing wax fat;

[0020] S2: raising the temperature in the dewaxing roaster to 180°C-220°C and keeping it warm for two hours;

[0021] S3: After step S2, the temperature in the dewaxing roaster is further raised to 480°C-520°C, and the temperature is kept for two hours;

[0022] S4: heat up the dewaxing roaster after step S3, raise the temperature to 800°C-850°C, and keep the temperature for 4.5 hours;

[0023] S5: furnace cooling the dewaxed and roasted inner plaster mold after step S4.

[0024] In the above design, rapid dehydration, dewaxing and roasting of the gypsum mold can be achieved by quickly increasing and keeping the temperature in the dewaxing roasting in stages. The crystal water in the plaster mold can be gradually eliminated by holding the temperature at 180°C-220°C for two hours. 480 ...

Embodiment 2

[0028] Embodiment 2: a kind of gypsum mold dewaxing roasting process comprises the following steps:

[0029] S1: put into the dewaxing roasting furnace after drying the gypsum mold containing wax fat;

[0030] S2: raising the temperature in the dewaxing roaster to 200°C and keeping it warm for two hours;

[0031] S3: After step S2, the temperature in the dewaxing roaster is further raised to 480°C-520°C, and the temperature is kept for two hours;

[0032] S4: heat up the dewaxing roaster after step S3, raise the temperature to 800°C-850°C, and keep the temperature for 4.5 hours;

[0033] S5: furnace cooling the dewaxed and roasted inner plaster mold after step S4.

[0034] In the above design, the rapid dehydration, dewaxing and roasting of the plaster mold can be realized by rapidly increasing and maintaining the temperature in the dewaxing roasting. The water of crystallization in the plaster mold can be gradually eliminated by holding the temperature at 200°C for two hour...

Embodiment 3

[0035] Embodiment 3: a kind of gypsum mold dewaxing roasting process comprises the following steps:

[0036] S1: put into the dewaxing roasting furnace after drying the gypsum mold containing wax fat;

[0037] S2: raising the temperature in the dewaxing roaster to 180°C-220°C and keeping it warm for two hours;

[0038] S3: After step S2, the temperature in the dewaxing roaster is further raised to 500° C., and the temperature is kept for two hours;

[0039] S4: heat up the dewaxing roaster after step S3, raise the temperature to 800°C-850°C, and keep the temperature for 4.5 hours;

[0040] S5: furnace cooling the dewaxed and roasted inner plaster mold after step S4.

[0041] In the above design, the rapid dehydration, dewaxing and roasting of the plaster mold can be realized by rapidly increasing and keeping the temperature in the dewaxing roasting in stages. The crystal water in the plaster mold can be gradually eliminated by holding the temperature at 180°C-220°C for two h...

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 plaster mold dewaxing and roasting process. The plaster mold dewaxing and roasting process comprises the following steps: (S1) a plaster mold is dried to put in a dewaxing and roasting furnace; (S2) the temperature in the dewaxing and roasting furnace is increased to 180-220 DEG C and maintained by 2 hours; (S3) the temperature in the dewaxing and roasting furnace is further increased to 480-520 DEG C and maintained by 2 hours; (S4) the temperature o the dewaxing and roasting furnace is increased to 800-850 DEG C and maintained by 4.5 hours; and (S5) the plaster moldin the dewaxing and roasting furnace is cooled in the furnace. In the plaster mold dewaxing and roasting process, through quick segmented increment and maintenance of the temperature in the dewaxingand roasting furnace, the dehydration, the dewaxing and the roasting of the plaster mold are realized; the temperature of 180-220 DEG C is maintained by 2 hours to gradually eliminate crystallized water in the plaster mold; a wax model in the plaster mold can be removed at 480-520 DEG C; the plaster mold can be quickly crystallized at 800-850 DEG C; the energy is saved; the quality of the plastermold is better; the internal defects are few; and the efficiency is high.

Description

technical field [0001] The invention relates to a plaster mold manufacturing process, in particular to a plaster mold dewaxing and roasting process. Background technique [0002] As a commonly used mold, plaster molds usually need to be roasted to strengthen the hardness. The existing plaster molds have many internal defects during roasting and are not energy-saving. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a gypsum mold dewaxing roasting process. [0004] The technical scheme that the present invention adopts to solve its technical problem is: a kind of gypsum mold dewaxing roasting process, comprises the steps: [0005] S1: put into the dewaxing roasting furnace after drying the gypsum mold containing wax fat; [0006] S2: raising the temperature in the dewaxing roaster to 180°C-220°C and keeping it warm for two hours; [0007] S3: After step S2, the temperature in the dewaxing r...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/12
Inventor 沈丹艳
Owner 太仓黑龙智能工业科技有限公司
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