Cad a tharlaíonn má dhéantar damáiste don snáithe flange nuair a bhíonn an breiseán snáithithe suiteáilte sa phail cruach críochnaithe, agus nach féidir an breiseán a scriú isteach?

Drum flange is a common closure device for tight head steel pail or steel drum. What if the flange thread was damaged due to the failure of the flange locking die, resulting in damage to the inner thread of the flange, and the plug cannot be screwed in. What should be done?

Freagra:

This situation is actually a relatively common problem in barrel-making enterprises. Under normal circumstances, problems should be discovered early in the flange locking process, and the mold or equipment should be repaired in time to avoid greater losses. When the steel drum is finished, it is found that the flange thread is damaged. It is indeed relatively late, but there are remedies. Generally, manual taps can be used to repair. 

Modh deisithe láimhe de shnáithe flange druma cruach

 Under normal circumstances, when the thread damage is not very heavy, it is easiest to use a manual tap to repair.

I   Preparation of tools

1. Purchase thread taps suitable for drum flanges. Standard closed steel drum flange, the large flange is G2 pipe thread, the small flange is G3/4 pipe thread, and taps are purchased according to the standard. The following figure shows common tap shapes. If you are not sure what kind of tap to buy, you can contact the flange supplier, and they will definitely give you the most suitable tap.

2. In addition to buying taps, you should also buy matching tap wrenches, as shown in the figure below, there are usually two types of wrenches.

3. If you use it frequently, for convenience, you can directly weld a wrench to the rear end of the tap without removing it.

II   the repair method and process

Is próiseas tapping é an snáithe a dheisiú. Scriú an sconna trí snáithe istigh an flange uair amháin, agus déanfar an chuid damáiste de snáithe istigh an flange a dheisiú.

Nuair a bhíonn tú ag deisiú, scriú an sconna isteach sa snáithe flange le chasmhóiminte áirithe chun an snáithe cáilithe a bhaint amach.

Cuireann fachtóirí daonna isteach go mór ar cháilíocht deisiúcháin láimhe, mar sin ní féidir linn ach cáilíocht deisiúcháin snáitheanna flange a chinntiú tríd an modh ceart a ghlacadh.

1. Druma cruach seasta

Sa phróiseas deisiúcháin snáithe flange, tá an druma cruach faoi réir fórsa an chasmhóiminte frith-, mar sin mura bhfuil an buicéad cruach nó an druma seasta, féadfaidh sé rothlú leis an sconna, ionas nach féidir an snáithe a bheith ann. deisithe. Dá bhrí sin, roimh dheisiú, ní mór an druma cruach a shocrú ar dtús. De ghnáth, is féidir le beirt oibriú le chéile freisin chun deisiú a dhéanamh, tá duine amháin freagrach as an bairille cruach a shealbhú leis an dá lámh chun é a chosc ó casadh, agus oibríonn an duine eile an sconna.

2. Suíomh an sconna

To start the repair, keep the tap straight, then straighten the tap with one hand and lightly hinge the bar with the other hand. Observe whether the tap is perpendicular to the top surface of the barrel from the front or side. If necessary, it can be corrected with a ruler, so that the direction of the tap is basically correct. This process is very important, if the tap is not entered correctly, the result of the repair may be more damaging to the thread.

3. Ceartú sconnaí

Mura bhfuil an sconna sa suíomh ceart ag tús an deisiúcháin, is féidir an sconna a dhíscriú agus a thabhairt ar ais sa suíomh ceart. Nuair a théann ceann an sconna go léir isteach sa flange, ní gá fórsa aiseach a chur i bhfeidhm a thuilleadh agus a bheith ag brath ar scriú nádúrtha an tsnáithe.

4. Cobhsaíocht an sconna

The force should be uniform. When turning the wrench, the operator's two hands should be balanced. Do not use too much force and shake left and right, otherwise the thread profile will be easily torn, the threaded hole will be enlarged and the taper will be increased, and the tap will be broken.

5. Exit of the tap

Bain úsáid as an ceann eochair chun rothlú trí snáitheanna uile an flange, ionas go mbeidh an sconna scaoilte, agus ansin an sconna droim ar ais a dhíscriú, toisc go bhfuil an oiriúnach idir an snáithe deisithe agus an sconna scaoilte. Seachain wobbling agus creathadh an sconna nuair a tharraingt siar, a d'fhéadfadh a scrios an bailchríoch dromchla an snáithe.

III Matters needing attention

Tar éis an snáithe flange a dheisiú le sconna láimhe, féadfar roinnt comhdú iarainn a fhágáil taobh istigh den druma cruach, rud atá dosheachanta. Dá bhrí sin, tar éis an deisiú a bheith críochnaithe, ní mór modh éifeachtach a úsáid chun na comhduithe iarainn sa bairille a ghlanadh chun glaineacht an bairille cruach a chinntiú.

Faoi imthosca gnáth, beidh an snáithe flange deisithe níos scaoilte ná an gnáth-snáithe nuair a shuiteáiltear an breiseán bairille, rud is gnáth-fheiniméan agus nach ndéanann sé difear don úsáid.