Vacuum degreasing sintering system
A vacuum degreasing and sintering furnace technology, applied in the field of industrial furnaces, can solve the problems of incomplete removal of vapor wax, pollution of furnace body and sintering quality, etc.
Active Publication Date: 2021-01-29
ZHUZHOU XINRONGLI IND
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Problems solved by technology
[0004] The main purpose of the present invention is to provide a vacuum degreasing sintering system, which aims to solve the problems of furnace body pollution and low sintering quality caused by incomplete removal of vapor wax generated in the dewaxing stage during the sintering process
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0030] In addition, in t...
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Abstract
The invention provides a vacuum degreasing sintering system. The vacuum degreasing sintering system comprises a vacuum degreasing sintering furnace, a wax collecting tank set, a differential pressurecontrol device and a vacuum pump set, the vacuum degreasing sintering furnace is internally provided with wax collecting pipelines penetrating through a heat insulation layer and a furnace cylinder body, one ends of the wax collecting pipelines communicated with an effective heating region, and the other ends of the wax collecting pipelines communicated with the wax collecting tank set; the differential pressure control device is connected with the furnace cylinder body and detects the air pressure of the overflow area; the vacuum pump set is used for introducing the carrier gas into the furnace cylinder body and vacuumizing; the differential pressure control device is further connected with the wax collecting tank set and detects the air pressure of the wax collecting tank set, and the pressure difference between the air pressure of the overflow region and the air pressure of the wax collecting tank set is set to meet the set differential pressure range by controlling the flow of thecarrier gas and the vacuum degree of the wax collecting tank set, and the carrier gas is used for discharging a vapor wax generated in the effective heating region to wax collecting tanks. According to the technical scheme, the pollution to the furnace body can be effectively reduced, the influence on the blank sintering quality at the next time is reduced, and the diffusion efficiency of the carrier gas and the collection efficiency of the vapor wax are improved.
Description
technical field [0001] The invention relates to the technical field of industrial furnaces, in particular to a vacuum degreasing and sintering system. Background technique [0002] The conventional dewaxing process is to install a vertical or horizontal wax trap outside the furnace. The horizontal wax trap is directly connected to the lower part of the furnace wall and connected to the vertical wax trap. One side of the vertical wax trap is connected to a vacuum pump group. During the sintering process, the vacuum pump continuously evacuates the furnace body; the temperature in the furnace body rises, and the binder and molding agent are gradually vaporized, which are drawn out by the vacuum pump unit and condensed in the wax trap through the cooling system. [0003] Although the traditional dewaxing equipment can store most of the binder or forming agent in the wax trap, since the binder or forming agent exists in the form of gas in the high-temperature furnace body, the in...
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IPC IPC(8): B22F3/10
Inventor 朱诗坤盛建华戴金宁盛利文
Owner ZHUZHOU XINRONGLI IND