Title:
VACUUM SOLDERING FURNACE AND SOLDERING PROCESS
Document Type and Number:
WIPO Patent Application WO/2019/128068
Kind Code:
A1
Abstract:
Disclosed is a vacuum soldering furnace, comprising a soldering chamber (18), a furnace cover (4) and a carrying mechanism (2), the furnace cover (4) covering an upper side of the soldering chamber (18), a soldering cavity being formed between the soldering chamber (18) and the furnace cover (4), and a soldering platform (20) being arranged at a lower portion of the soldering chamber (18), characterized in that a side of the soldering platform (20) close to a feeding end is a heating region, and a side of the soldering platform (20) close to a discharge end is a cooling region; a negative pressure creation module (9) is arranged on an upper side of an end, close to the cooling region, of the heating region, the negative pressure creation module (9) is arranged on the furnace cover (4) in a liftable manner, and the bottom of the negative pressure creation module (9) and the heating region together enclose a sealed negative-pressure cavity; and a protective gas inlet pipe is arranged on the soldering chamber (18) and the furnace cover (4). The heating region of the vacuum soldering furnace can heat a sheet, such that the sheet can be quickly soldered in the negative pressure cavity; a protective gas can prevent a reaction between the sheet and oxygen during heating; and the cooling region can cool the sheet, thereby preventing oxidation of the sheet. A soldering process of a vacuum furnace is further disclosed. The soldering process reduces the soldering time and improves the soldering speed, and the cooling region can not only ensure thorough cooling, but can also prevent a sheet from being deformed due to over-quick cooling.
Inventors:
LI XIANGDONG (CN)
Application Number:
PCT/CN2018/088228
Publication Date:
July 04, 2019
Filing Date:
May 24, 2018
Export Citation:
Assignee:
SHANDONG CAIJU ELECTRONIC TECH CO LTD (CN)
International Classes:
B23K3/00; B23K1/008; B23K3/08
Domestic Patent References:
| WO2014115583A1 | 2014-07-31 | |||
| WO2012070264A1 | 2012-05-31 |
Foreign References:
| CN107855622A | 2018-03-30 | |||
| CN107838516A | 2018-03-27 | |||
| CN107963443A | 2018-04-27 | |||
| CN107855623A | 2018-03-30 | |||
| CN107931768A | 2018-04-20 | |||
| CN103056473A | 2013-04-24 |
Attorney, Agent or Firm:
ZIBO JIAHE PATENT AGENCY OFFICE (CN)
Download PDF: