Bambancin Sarrafa Roba na Halitta da Roba na Roba

Muhimman Abubuwan Da Ake Ɗauka

• Gaskiyar gibin ita ce maimaituwa, ba sinadarai ba: yaduwar kayayyaki ita ceNa'urorin Mooney 8-12 don roba na halitta idan aka kwatanta da MU 3-5 don SBR, NBR ko EPDMdaga wani mai samar da kaya.
• Ƙarfin kore yana motsa saitin yankewar ku taKashi 10-30 cikin ɗari na saurin ciyarwaa daidai wannan ma'aunin 0.5 mm, tare da silicone a ƙarshen a hankali.
• Cryogenic deflashing a-150 digiri Celsiusya shafi kowace polymer gama gari saboda canjin gilashi yana gudana ne kawai daga digiri -125 zuwa digiri -20, amma walƙiyar silicone mai laushi tana fitowa da ƙarfin iska kawai.
• Silicone da FKM yawanci suna buƙatarBayan an dafa a zafin jiki na digiri 200-250 na Celsius, bayan awanni 4-24,; yawanci ana gama robar halitta bayan an matse ta.

Amsar a takaice:robar halitta da robar roba sun bambanta a fannin sarrafawa a tashoshi huɗu waɗanda ke kashe kuɗi:Daidaiton tsari a kayan da ke ciki, ƙarfin kore a wurin yanka, yanayin gazawar walƙiya a sashin cirewa, da kuma ko ɓangaren yana buƙatar magani na biyuRoba ta halitta tana yaɗa na'urorin Mooney guda 8-12 tsakanin ramuka amma tana riƙe da siffarta da kyau, don haka juriyar yankewa na iya yin aiki da faɗi. SBR, NBR, EPDM, FKM da silicone suna samun daidaito sosai amma suna da ƙarancin ƙarfi kore kuma galibi suna buƙatar digiri 200-250 na Celsius bayan an warke wanda NR ba ta taɓa buƙata ba.

Layin samarwa ba ya rasa kuɗi a dakin gwaje-gwajen sinadarai. Yana asarar kuɗi lokacin da tsiri ya miƙe a ƙarƙashin abin da aka naɗa, lokacin da walƙiya ta tsage maimakon karyewa, ko kuma lokacin da rukuni ya warke da kashi 15 cikin ɗari fiye da na ƙarshe. Wannan jagorar tana bin ɓangaren daga kaya zuwa cikin marufi kuma tana nuna bambance-bambancen da ke tilasta saitin ya canza.

Menene Ya Bambanta Tsakanin Robar Halitta da Robar Roba a Samarwa?

Bambancin da ke kaiwa ga shagon shine maimaituwa, ba tsarin kwayoyin halitta ba.Robar halitta ana amfani da ita ne da cis-1,4-polyisoprene daga bishiyoyin Hevea kuma ana auna ta da ƙasa, toka da abubuwan da ke canzawa. Domin ba a tsara shi yadda ya kamata ba, za ku sami duk abin da kakar ta samar. Robar roba, wacce aka rarraba a ƙarƙashinISO 1629ta hanyar iyali, an yi shi da polymerized bisa ga ƙayyadaddun bayanai.

Saboda an ƙayyade wani shigarwar kuma ɗayan an ƙayyade, NR yana canza saitunanku kuma robar roba tana canza uzurinku.Wannan rashin daidaito guda ɗaya ya bayyana kowace bambanci a aikace a ƙasa.

Me yasa Daidaito a Rukunin Yankewa ke Kayyade Juriyar Yankewarku?

Domin kuwa duk wani siga da ka saka a cikin yankewa, hakika zato ne na danko. A Injin yanke igiyar roba na CNCyana riƙe da ƙarin ko rage daidaiton ciyarwa na 0.1 mm kuma yana yanke kauri na 0-20 mm har zuwa bugun 80 a minti ɗaya, amma sai lokacin da mahaɗin da ke shiga ruwan wukake ya yi tauri da aka ɗauka cewa girke-girken ya yi.

Dole ne a yi amfani da robar halitta kafin a haɗa ta, don ta isa gare ku da tarihin yankewa wanda ya bambanta da yawa. A cikin bayanan kayan abokin ciniki, kuri'un NR galibi suna ba da raka'a 8-12 na Mooney (ML 1+4 a digiri 100 Celsius) yayin da kuri'un SBR, NBR da EPDM sun ba da MU 3-5 - ƙimar da aka saba gani daga gogewarmu.

Yaɗuwar MU mai girman 8-12 yana nuna kusan kashi 15-20% na jurewar tauri a cikin mahaɗin., ya isa ya canza yadda tsiri ke ciyarwa, yadda nisan da yake fitowa bayan ruwan wukake, da kuma ko fuskar da aka yanke murabba'i ce ko kuma ta yage.

Adadin da aka yada dabi'u ne na yau da kullun daga gogewarmu, ba iyakokin kasida ba - duba su da binciken karɓar ku.

Ina robar halitta da roba ke rabawa yayin cire walƙiya?

Rabawar tana cikin yadda walƙiyar ke faɗuwa, ba yawanta ba.Fitilar roba ta halitta tana da laushi kuma tana yagewa zuwa igiyoyi, fitilar SBR da NBR tana rugujewa, kuma fitilar silicone tana da rauni sosai don gogewa.

Sanyi shine daidaita daidaiton duniya baki ɗaya. Canjin gilashi yana gudana daga kimanin digiri -125 na Celsius don silicone zuwa digiri -20 na Celsius don FKM, don haka aInjin cire ruwa mai ɗauke da sinadarin nitrogen mai ɗauke da sinadarin cryogenica digiri -150 na Celsius ya sanya dukkansu ƙasa da inda za su yi rauni. Na'urar LN2 ɗinmu tana ɗauke da ƙarfin birgima mai nauyin lita 80 (kilogiram 15-20 na ƙananan sassa) kuma tana zagayawa cikin ƙasa da mintuna 8 a gudun 20-70 RPM tare da ƙimar wucewa sama da kashi 98 cikin ɗari.

Cryo har yanzu ba shine na asali ba. Haske mai laushi, mai ƙarancin hawaye yana fitowa tare da walƙiyainjin cire iska mai amfani da wutar lantarki ta pneumatica cikin nauyin da bai wuce kilogiram 4/min ba, sabodada za ku biya kuɗin sinadarin nitrogen na ruwa don yin aikin fashewar iska ta rabin daƙiƙa ta riga ta ƙare. Fara gudanar da wani yanki na tarkace a digiri -80 na Celsius sannan ka sauka ƙasa da digiri 10 a lokaci guda; mafi ɗumi da har yanzu ya wuce ƙayyadaddun walƙiyarka shine wanda ke adana nitrogen.

Shin Magungunan Haɗaka Suna Bukatar Zagaye na Biyu na Warkewa?

Yawanci eh, kuma roba ta halitta yawanci a'a.Yawanci ana gama aikin NR vulcanization a cikin injin matsewa. Silicone da FKM suna buƙatar bayan an warke don fitar da ƙwayoyin cuta da kuma cikakken haɗin gwiwa, ko kuma tauri da saitin matsi suna ci gaba da shuɗewa bayan an saka sassan a cikin akwati.

Kayan aiki da ya dace shinemurhun nadi don vulcanization na biyu, ba dannawa ta biyu ba. Na'urorinmu na XCJ-K600 (600 L) da XCJ-K900 (900 L) suna aiki daga zafin ɗaki zuwa digiri 280 na Celsius akan na'urar dumama mai ƙarfin 10.5 kW, suna motsa iska mai ƙarfin 3,000 CBM/H ta cikin ganga mai kusurwa huɗu don haka kowane saman yana ganin zafin iri ɗaya, kuma suna karɓar kowane lokaci na warkewa daga awanni 0 zuwa 99.99.

Sanya maganin bayan an gama amfani da shi a kan katin girke-girke maimakon a cikin ƙwaƙwalwar mai aiki.Tazarar awanni 4 da ba a saba gani ba wacce ke tafiya zuwa awanni 6 tana canza yanayin tauri da matsi, kuma akwai kariya mai yawa ta zafin jiki biyu saboda guduwa bayan warkewa yana ƙone FKM fiye da murmurewa.

Ta Yaya Ragewar Jiki Ke Karya Haƙurinka Kafin Ka Rage Komai?

Ragewa shine inda ɓangaren da aka yanke daidai ya zama ɓangaren da ba daidai ba.Ragewar da aka yi wa allurar kashi 1.5-4 cikin ɗari yana nufin tsawon yankewar dole ne a raba shi da ɗaya a rage girman da aka yi wa allurar, ba a saita shi zuwa girman zane ba.ASTM D2000yana saita azuzuwan tauri da haƙuri amma ba raguwa ba, don haka lambar dole ne ta fito daga gwajin ku.

A kashi 3 cikin ɗari na raguwa, gasket ɗin da aka gama na 50.0 mm yana buƙatar yankewa na 51.5 mm. Saita 50.0 mm kuma ɓangaren ya riga ya zama ƙaramin girman 1.5 mm kafin a duba shi - lahani ne da mai aiki ba zai iya gani ba kuma abokin ciniki ba zai karɓa ba.

NR yana motsawa da kashi 1.5-3 cikin ɗari kuma yana raguwa fiye da yadda yake a kan hatsi, saboda sarƙoƙi suna juyawa yayin niƙa. Silicone da FKM suna motsawa da kashi 2-4 cikin ɗari kuma suna amsawa ga zafin jiki mai warkewa fiye da lokaci, don haka girke-girke iri ɗaya akan matsi daban na iya sauka a waje.

Wace Hanya Ta Tsaftacewa Ta Dace Da Wace Polymer?

Daidaita wanke-wanke da abin da saman yake ɗauke da shi, ba da abin da aka yi ɓangaren da shi ba.Sassan NR suna zuwa da ƙura da talc ko sabulun sabulu wanda sassan roba ba sa ɗauke da shi, kuma NR yana kumbura a cikin ruwa yayin da silicone ba ya ɗauke da shi.

TheInjin tsaftacewa da busar da robaXCJ-QXJ 600 yana amfani da ganga mai bakin karfe 304 mai diamita 600 mm da tsawon mm 1,000, yana ɗaukar kilogiram 15-30 a kowace kaya kuma yana gudanar da rukuni uku na matakai shida. Yana amfani da lita 20/min na ruwa (tan 0.1 a kowace wanka na minti 6) da kuma kilowatt 2.5 a kowace awa don tsaftacewa da bushewa na minti 20 a 12 kW / 380 V, tare da bututun ƙarfe masu juyawa waɗanda ba sa barin tabo a makance.

Don NR, yi amfani da mafi guntun wanke-wanke wanda ke share sinadarin ƙura, domin nitsewa mai tsawo yana kumbura ɓangaren bayan kun riga kun duba shi. Ga silicone, matakin ƙari yana samun matsayinsa: wanke-wanke da ruwa kawai ke barin fim wanda daga baya ya bayyana a matsayin gazawar haɗin gwiwa a layin abokin ciniki.

Ta Yaya Za Ka Sake Cancanta Layi Don Sabon Haɗaka?

Sake cancanta a matakai biyar, kuma kada ku tsallake na farko.Yawancin makullan kayan da suka lalace sun lalace saboda babu wani tushe da aka rubuta, don haka babu wanda zai iya tabbatar da abin da ya canza.

1. Daskare takamaiman da ke shigowa.Yi rikodin danko na Mooney, tauri, takamaiman nauyi da lambar fili don filaye uku kafin taɓa saiti.
2. Sake yanke labarin farko a saurin ciyarwa uku.A kiyaye mafi jinkirin da ke riƙe da haƙuri, domin ƙarin gudu akan wani abu mai ƙarancin ƙarfi mai kore yana siyan tarkace ne kawai.
3. Nemo taga mai rauni a kan tarkace.Fara daga digiri -80 na Celsius sannan ka sauka ƙasa da digiri 10 har sai walƙiya ta karye maimakon tsagewa.
4. Sake ƙididdige tsawon yankewa daga raguwar da aka auna.A auna sassa biyar bayan sa'o'i 24 bayan an warke, ba a yi a rana ba, domin yawancin raguwar takan ƙare a wannan taga.
5. Rubuta girke-girken bayan warkewa ga mai sarrafawa.Matsakaicin gudu, zafin riƙewa, lokacin riƙewa da kuma saurin sanyaya, duk huɗu, ba kawai wurin da aka saita ba.

Kammalawa: Wane Abu Ya Kamata Ku Daidaita A Kai?

Daidaita kayan da bincikenka zai iya sarrafawa.Sinadarin roba mai girman MU 3 yana ba ku damar yin haƙuri mai ƙarfi da ƙarancin binciken farko, wanda ya fi kowane abu na zahiri daraja. NR yana samun matsayinsa inda juriya da ƙarfin tsagewa suka fi mahimmanci fiye da maimaitawa - sannan za ku sake samun haƙuri da saurin ciyarwa da kuma wankin da ya yi gajere.

Ko wane iyali kake gudanarwa, saituna suna cikin na'urar, ba a cikin polymer ba. Aika bayani game da mahaɗinka, ma'auni da walƙiya kuma za mu daidaitalalatako kuma yanke saitin zuwa gare shi.