Chii chandinofanira kuita kana paine maburi ekushivirira mukugadzirwa kwesimbi?

Mukugadzirisa zvivakwa zvesimbi, kunyanya mukugadzira, pane zvakawanda zvinofanirwa kucherechedzwa uye kudziviswa pachine nguva, senge nzira yekubata nayo pores welding, iyo inofungidzirwa kuti idambudziko rine minzwa rinotambudza vazhinji vanogadzira simbi.Ziva newe chinotevera.

Chokutanga pane zvose, ngatinzwisise mitemo yakakodzera pamusoro pekuisa pores mukugadzirwa kwesimbi: yekutanga uye yechipiri giredhi welds haibvumirwi kuva neporosity defects;giredhi rechitatu welds anotenderwa kuva nemadhayamita <0.1t uye ≤3mm per 50mm kureba welds.Kune 2 maburi emhepo;iyo gomba spacing inofanira kuva ≥ 6 nguva dhayamita yegomba.

Tevere, isu tichaongorora zvikonzero chaizvo zvekuumbwa kweaya ma pores ekushongedza mukugadzirisa kwesimbi zvimiro:

1. Kune mavara emafuta, mavara emarara, tsvina yemvura uye tsvina (kunyanya mavara epende) mu groove uye yakapoteredza hukama hwayo, ndicho chimwe chezvikonzero zvekuonekwa kwepores mu weld;

2. Mhangura yemhangura yemhangura yetambo yewelding inobviswa zvishoma, kuitira kuti chikamu chive nemarara, uye musono welding uchabudisawo pores;

3. Iyo post-heating (deoxidation) yegobvu workpiece haina kuitwa munguva mushure mekuputika, kana kupisa kwemashure-kupisa hakuna kukwana, kana nguva yekubata haina kukwana, izvo zvinogona kukonzera zvakasara pores mu weld;

4. Pane hukama hwakananga pakati pepamusoro pores uye kupisa kwekubikira kwezvinhu zvewelding, kukurumidza kupisa kwakanyanya, uye nguva yekubata haina kukwana.

Mushure mekunzwisisa zvinokonzeresa welding porosity mukugadzirwa kwesimbi, zvinonyanya kukosha kudzidza matanho ekudzivirira:

1. Mapore epamusoro ane nhamba shoma uye dhayamita diki inogona kuvhuvhuta nevhiri rekukuya, kusvikira chikamu ichi chinogona kushanduka zvakanaka nese weld uye kushanduka zvakanaka kune nheyo yesimbi;

2. The gobvu workpiece inofanira preheated pamberi welding uye kusvika tembiricha inodiwa netsanangudzo.Makobvu workpieces anofanirwa kudzora tembiricha pakati pemakwara;

3. Welding zvinhu zvinofanira kubikwa uye kuramba zvichidziya maererano nemitemo, uye haifaniri kunge iri mumhepo kwemaawa anopfuura 4 mushure mekushandiswa;

4. Nyatsoteerera kune welding nharaunda panguva yekuputika.Welding inofanira kumiswa kana hunyoro hunopfuura 90%;manual arc welding inoitwa kana mhepo inomhanya inopfuura 8m / s, uye gasi rakadzivirirwa welding rinoitwa kana mhepo inomhanya inopfuura 2m / s.Kana tembiricha yakadzikira kupfuura 0 ° C, iyo workpiece inofanira kupisa kusvika 20 ° C, uye workpiece kuti preheated inofanira preheated ne20 ° C panguva ino.

5. Nyatsoteerera kune welding process parameters uye uvandudze unyanzvi hwevelders.Iyo dhiramu yegasi yakadzivirirwa welding inofanirwa kupeperetswa nemhepo yakamanikidzwa nguva nenguva kubvisa tsvina.

Tsanangudzo dzinotarisa kubudirira kana kukundikana, uye kune mikana yakawanda yezvinetso muwelding, iyo inonyanya kukosha mukugadzirwa kwesimbi.