{"id":163,"date":"2026-06-04T09:38:16","date_gmt":"2026-06-04T09:38:16","guid":{"rendered":"https:\/\/defoamer.net\/?p=163"},"modified":"2026-06-04T09:42:04","modified_gmt":"2026-06-04T09:42:04","slug":"di-aimsitheoir-an-breisean-beag-a-chuireann-stop-le-haimsithe-o-scriosadh-an-baisc-iomlain","status":"publish","type":"post","link":"https:\/\/defoamer.net\/ga\/defoamer-the-small-addition-that-stops-foam-from-wrecking-an-entire-batch\/","title":{"rendered":"D\u00edfoimneoir: An Breise\u00e1n Beag a Chuireann Stop le F\u00f3im \u00f3 Dhochar a Dh\u00e9anamh ar Baisc Ioml\u00e1n"},"content":{"rendered":"<div>\n<p dir=\"auto\">Tar \u00e9is breis agus c\u00faig bliana is fiche ag obair i monarchana p\u00e9inteanna agus bratuithe, chonaic m\u00e9 an t-adhmad\u00e1n ag iomp\u00fa a raibh ceaptha a bheith ina sheisi\u00fan t\u00e1irgthe simpl\u00ed ina l\u00e1 fada de dhi\u00faltuithe agus d'athobair. Is cuma c\u00e9 chomh maith is at\u00e1 an scaipeadh l\u00edocha n\u00f3 an c\u00f3ras rois\u00edn \u2014 m\u00e1 leanann an c\u00far go dt\u00ed an p\u00e9int chr\u00edochnaithe, b\u00edonn poill bheaga, cr\u00e1it\u00e9ir, sreabhadh lag, agus custaim\u00e9ir\u00ed m\u00edsh\u00e1sta mar thoradh air. Is iad d\u00ed-ch\u00farth\u00f3ir\u00ed na breise\u00e1in a choscann an chuid is m\u00f3 de na fadhbanna seo go ci\u00fain, ach sin amh\u00e1in nuair a roghna\u00edonn t\u00fa an cine\u00e1l ceart agus nuair a \u00fas\u00e1ideann t\u00fa i gceart \u00e9.<\/p>\n<p dir=\"auto\"><!--more--><\/p>\n<p dir=\"auto\">Crutha\u00edtear c\u00far nuair a chuirtear aer isteach sa leacht le linn meascadh ard-ghearrtha, caid\u00e9al\u00fa, n\u00f3 l\u00edonadh, agus d\u00e9antar na boilgeoga a chobhs\u00fa leis na surfact\u00e1in agus na scaipthe\u00e1in ch\u00e9anna at\u00e1 riachtanach don fhoirmle. I gc\u00f3rais uisce-iompartha, is measa an fhadhb de ghn\u00e1th mar gheall ar leibh\u00e9il n\u00edos airde surfact\u00e1n. Oibr\u00edonn d\u00ed-aer\u00f3g\u00e1nach maith tr\u00ed bheith an-\u00edseal \u00f3 thaobh teannais dromchla de, ionas go scaipeann s\u00e9 go tapa trasna dhromchla na boilge, go nd\u00edspeideann s\u00e9 an scann\u00e1n cobhsa\u00edochta, agus go mb\u00edonn balla na boilge ag \u00e9ir\u00ed tana\u00ed agus ag pl\u00e9ascadh. B\u00edonn c\u00e1ithn\u00edn\u00ed beaga hidreaf\u00f3baiceacha i go leor t\u00e1irg\u00ed nua-aimseartha freisin a chuid\u00edonn leis an scann\u00e1n a pholladh \u00f3n taobh istigh.<\/p>\n<p dir=\"auto\">T\u00e1 tr\u00ed phr\u00edomh-theaghlach ann a mb\u00edm ag brath orthu go rialta. B\u00edonn d\u00edbhoilgeoir\u00ed bunaithe ar ola mhianrach l\u00e1idir agus cost-\u00e9ifeachtach, go h\u00e1irithe i gc\u00f3ta\u00ed tionscla\u00edocha agus cothabh\u00e1la. Tugann t\u00e1irg\u00ed bunaithe ar shileac\u00f3n, polaidimethylsilocs\u00e1in\u00ed modhnaithe de ghn\u00e1th, buille s\u00edos tapa ar an mboilgeog ag d\u00e1ileoga an-\u00edseal agus \u00fas\u00e1idtear go forleathan iad i bp\u00e9inteanna ailtireachta agus p\u00e9inteanna uiscedh\u00edreacha ard-snasta. T\u00e1 n\u00edos m\u00f3 \u00e9ilimh ar roghanna polaim\u00e9ire-bhunaithe n\u00f3 saor \u00f3 shileac\u00f3n sna c\u00e1sanna sin ina gcuireann imn\u00ed rial\u00e1la n\u00f3 comhoiri\u00fanachta sileac\u00f3in thraidisi\u00fanta as an \u00e1ireamh.<\/p>\n<p dir=\"auto\">Is cuimhin liom f\u00f3s tionscadal \u00e9amaile tionscla\u00edoch aicrileach uisce-iompartha a rinneamar c\u00fapla bliain \u00f3 shin a l\u00e9irigh na f\u00edordhifr\u00edochta\u00ed. Bh\u00edomar ag scaipeadh TiO\u2082 agus ruaimeanna org\u00e1nacha i scaipeadh aicrileach i 32 % PVC. Gan aon d\u00ed-aer\u00f3ir, bh\u00ed an millbase ag c\u00far go dona. Tar \u00e9is deich n\u00f3im\u00e9ad de scaipeadh ardluais i sorc\u00f3ir gr\u00e1daithe 250 ml, shroich airde an ch\u00far 175 mm agus d'fhan s\u00e9 ag an airde sin. L\u00e9irigh an p\u00e9int chr\u00edochnaithe me\u00e1n de 14 pholl\u00e1n bior\u00e1in in aghaidh 10 cm\u00b2 ar na sampla\u00ed tarraingthe s\u00edos, n\u00ed raibh an gile ag 60\u00b0 ach 64 aonad, agus bh\u00ed cr\u00e1it\u00e9ir infheicthe ar na pain\u00e9il sprae\u00e1ilte.<\/p>\n<p dir=\"auto\">Rith muid ansin an fhoirmle bhun\u00fasach ch\u00e9anna le tr\u00ed dh\u00edfoam\u00f3ir \u00e9ags\u00fala curtha leis ag 0.3 % gn\u00edomhach le linn an ch\u00e9im letdown:<\/p>\n<ul dir=\"auto\">\n<li>Laghdaigh d\u00ed-aer\u00f3ir caighde\u00e1nach ola mhianrach airde an fhoim go 70 mm. Thit l\u00edon na bpoll\u00e1n beag go dt\u00ed thart ar 5 in aghaidh 10 cm\u00b2, ach bh\u00ed ceo beag ar an scann\u00e1n triomaithe agus n\u00edor shroich an snasta ach 71 aonad. Tar \u00e9is coic\u00edse ag 50 \u00b0C, chonaiceamar scaradh beag dromchla.<\/li>\n<li>Laghdaigh eiblithe\u00e1n silac\u00f3in traidisi\u00fanta airde an fhoim go 18 mm agus chuir s\u00e9 deireadh le poill bheaga ar na tarraingt\u00ed s\u00edos agus ar na pain\u00e9il sprae\u00e1ilte araon. Th\u00e1inig feabhas ar an ngloine go 82 aonad. Bh\u00ed an chobhsa\u00edocht st\u00f3r\u00e1la go maith, c\u00e9 gur thugamar m\u00e9ad\u00fa beag ar an sleamhn\u00fa faoi deara a d'fh\u00e1g fadhbanna beaga ann n\u00edos d\u00e9ana\u00ed nuair a bh\u00ed an custaim\u00e9ir ag iarraidh athch\u00f3at\u00fa a dh\u00e9anamh.<\/li>\n<li>Thug sileacan polaeitear-mhodhnaithe airde c\u00fair 15 mm, gan aon pholl\u00e1n, agus an snasta is airde ag 86 aonad. L\u00e9irigh s\u00e9 an chobhsa\u00edocht fhadt\u00e9armach is fearr freisin \u2014 gan aon scaradh n\u00e1 caol\u00fa leaisteachais tar \u00e9is 30 l\u00e1 ag teocht an tseomra. An t-aon lamh\u00e1ltas a bh\u00ed ann n\u00e1 m\u00e9ad\u00fa beag ar an sleamhn\u00fa dromchla, rud a bhainist\u00edomar tr\u00ed an d\u00e1ileog a laghd\u00fa go 0.25 %.<\/li>\n<\/ul>\n<p dir=\"auto\">Ba \u00e9 an leagan sileac\u00f3in mhodhnaithe an caighde\u00e1n a bh\u00ed againn don tsraith sin, mar gur chruthaigh s\u00e9 an scann\u00e1n is glaine gan lochtanna nua a chruth\u00fa. Roinneamar an breise\u00e1n \u2014 leath sa mheilt agus leath sa scagadh \u2014 rud a thug beag\u00e1n n\u00edos m\u00f3 seasmhachta n\u00e1 mar a thug cur gach rud isteach ag an am c\u00e9anna.<\/p>\n<p dir=\"auto\">D'fhormhuinigh an triail sin ceachtanna a chonaic m\u00e9 \u00e1 n-athr\u00e1 i go leor monarchana. T\u00e1 an d\u00e1ileog r\u00edth\u00e1bhachtach le silac\u00f3in\u00ed; is iond\u00fail go mb\u00edonn 0.1\u20130.4 % leor. Is minic a chrutha\u00edonn m\u00e9ad\u00fa m\u00f3r ar an d\u00e1ileog 'fish-eyes' n\u00f3 cr\u00e1it\u00e9ir, go h\u00e1irithe i gc\u00f3rais ard-snasta n\u00f3 at\u00e1 in-athch\u00f3at\u00e1ilte. T\u00e1 t\u00e1bhacht leis an bpointe breise freisin. Uaireanta, m\u00e1 chuirtear an d\u00e1ileog ioml\u00e1n sa mheascadh, is f\u00e9idir \u00e9ifeachtacht a laghd\u00fa n\u00edos d\u00e9ana\u00ed de bharr sciorradh. T\u00e1 t\u00e1st\u00e1il inchomhoiri\u00fanachta ar an bhf\u00edor-fho-strucht\u00far agus leis an bhfoirmle ioml\u00e1n f\u00edor-riachtanach \u2014 is f\u00e9idir le t\u00e1irge a oibr\u00edonn go foirfe in aicrileach amh\u00e1in cr\u00e1it\u00e9ir mh\u00f3ra a chruth\u00fa in aicrileach eile nuair a bh\u00edonn gn\u00edomhair\u00ed taise \u00e1irithe i l\u00e1thair.<\/p>\n<p dir=\"auto\">\u00d3 thaith\u00ed, caitheann na monarchana a mb\u00edonn an l\u00edon is l\u00fa fadhbanna c\u00far acu le roghn\u00fa d\u00ed-ch\u00fartha mar obair fhoirmlithe dh\u00e1ir\u00edre seachas mar iarmhach. Ritheann siad triail chompar\u00e1ide chu\u00ed, tomhaiseann siad airde an fhoim l\u00e1ithreach agus tar \u00e9is 24 uair an chloig, scr\u00fada\u00edonn siad an scann\u00e1n triomaithe faoi sholas maith, agus deimhn\u00edonn siad cobhsa\u00edocht st\u00f3r\u00e1la agus feidhm\u00edocht athch\u00f3ta i gc\u00f3na\u00ed. Coinn\u00edonn siad taifid freisin ar na gr\u00e1id is fearr a fheidhm\u00edonn leis na teaglama\u00ed sonracha de l\u00edocha agus de rois\u00edn\u00ed at\u00e1 acu.<\/p>\n<p dir=\"auto\">N\u00ed r\u00e9it\u00edonn aon d\u00ed-aer\u00f3ir aonair gach fadhb. Is f\u00e9idir le cine\u00e1lacha ola mianra\u00ed ceo a chruth\u00fa i gc\u00f3ta\u00ed tr\u00e9dhearcacha. B\u00edonn tionchar ag roinnt sileac\u00f3n ar ghream\u00fa idirch\u00f3ta. Uaireanta, b\u00edonn g\u00e1 le d\u00e1ileoga n\u00edos airde de th\u00e1irg\u00ed polaim\u00e9ire-bhunaithe. Is \u00e9 an f\u00edorchumas n\u00e1 an cheimic a mheaitse\u00e1il le foinse an fh\u00f3im, an modh iarratais, agus riachtanais an scann\u00e1in deiridh, agus ansin an rogha a dheimhni\u00fa le t\u00e1st\u00e1il phraitici\u00fail seachas a bheith ag brath ar bhileoga sonra\u00ed amh\u00e1in.<\/p>\n<p dir=\"auto\">Nuair a \u00fas\u00e1idtear an d\u00edbhoilsitheoir ceart ag an leibh\u00e9al ceart agus a chuirtear isteach ag an gc\u00e9im cheart, n\u00ed thugann an chuid is m\u00f3 de dhaoine faoi deara riamh go raibh s\u00e9 ann. B\u00edonn an t\u00e1irgeadh n\u00edos rian\u00fala, titeann an l\u00edon di\u00faltuithe, agus b\u00edonn cuma cheart ar an gc\u00f3ta\u00edocht chr\u00edochnaithe. Sin an iontaofacht chi\u00fain sin is c\u00fais leis, tar \u00e9is na mblianta seo go l\u00e9ir, go measaim f\u00f3s gur ceann de na cinnt\u00ed is m\u00f3 tionchair in aon fhoirmli\u00fa \u00e9 an d\u00ed-aimsitheoir ceart a roghn\u00fa.<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<div><\/div>","protected":false},"excerpt":{"rendered":"<p>After more than twenty-five years working in paint and coatings plants, I\u2019ve seen foam turn what should have been a straightforward production run into a long day of rejects and rework. It doesn\u2019t matter how good the pigment dispersion or resin system is \u2014 if persistent foam carries through to the finished paint, you end [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-163","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/defoamer.net\/ga\/wp-json\/wp\/v2\/posts\/163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/defoamer.net\/ga\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/defoamer.net\/ga\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/defoamer.net\/ga\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/defoamer.net\/ga\/wp-json\/wp\/v2\/comments?post=163"}],"version-history":[{"count":4,"href":"https:\/\/defoamer.net\/ga\/wp-json\/wp\/v2\/posts\/163\/revisions"}],"predecessor-version":[{"id":167,"href":"https:\/\/defoamer.net\/ga\/wp-json\/wp\/v2\/posts\/163\/revisions\/167"}],"wp:attachment":[{"href":"https:\/\/defoamer.net\/ga\/wp-json\/wp\/v2\/media?parent=163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/defoamer.net\/ga\/wp-json\/wp\/v2\/categories?post=163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/defoamer.net\/ga\/wp-json\/wp\/v2\/tags?post=163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}