110 ihe ọmụma nke SMT mgbawa nhazi akụkụ 2
56. Na mmalite 1970s, e nwere ụdị SMD ọhụrụ na ụlọ ọrụ ahụ, nke a na-akpọ "ụkwụ na-erughị ihe mgbawa", nke HCC na-anọchi anya ya;
57. Nguzogide nke modul na akara 272 kwesịrị ịbụ 2.7K ohm;
58. Ikike nke 100nF modul bụ otu ihe ahụ nke 0.10uf;
Ebe eutectic nke 63Sn + 37Pb bụ 183 ℃;
60. Ihe eji eme ihe eji eme ihe nke SMT bu seramiki;
61. The kasị elu okpomọkụ nke reflow oven okpomọkụ usoro bụ 215C;
62. Okpomọkụ nke ọkụ tin bụ 245c mgbe a na-enyocha ya;
63. Maka akụkụ SMT, dayameta nke efere mkpuchi bụ 13 sentimita na 7 sentimita;
64. Ụdị mmeghe nke efere ígwè bụ square, triangular, gburugburu, kpakpando ọdịdị na larịị;
65. Ugbu a eji kọmputa akụkụ PCB, akụrụngwa ya bụ: iko eriri osisi;
66. Kedu ụdị mpempe akwụkwọ seramiiki bụ ihe eji eme ihe nke sn62pb36ag2 a ga-eji;
67. Enwere ike kewaa flux nke Rosin n'ime ụdị anọ: R, RA, RSA na RMA;
68. Ma nkwụsị nke ngalaba SMT bụ ntụziaka ma ọ bụ na ọ bụghị;
69. The ugbu a solder mado na ahịa naanị chọrọ 4 awa nke nnyapade oge na omume;
70. Mgbakwunye ikuku nke ngwa SMT na-ejikarị bụ 5kg / cm2;
71. Kedu ụdị usoro ịgbado ọkụ kwesịrị iji mee ihe mgbe PTH dị n'akụkụ ihu adịghị agafe na ọkụ tin na SMT;
72. Ụzọ nyocha ndị a na-ahụkarị nke SMT: nlele anya, nyocha X-ray na nyocha ọhụụ igwe.
73. Usoro nchịkwa okpomọkụ nke akụkụ nrụzi ferrochrome bụ nhazi + convection;
74. Dị ka data BGA dị ugbu a si dị, sn90 pb10 bụ isi bọọlụ tin;
75. Usoro mmepụta nke efere ígwè: ịcha laser, electroforming na etching chemical;
76. Okpomọkụ nke ọkụ ịgbado ọkụ: jiri temometa tụọ okpomọkụ ọdabara;
77. Mgbe a na-ebupụ ngwaahịa SMT SMT nke ọkara, a na-edozi akụkụ ahụ na PCB;
78. Usoro njikwa mma ọgbara ọhụrụ tqc-tqa-tqm;
79. Nnwale ICT bụ ule akwa akwa;
80. Enwere ike iji ule ICT nwalee akụkụ eletrọnịkị, wee họrọ ule static;
81. Ihe e ji mara tin na-agbaze bụ na ebe mgbaze dị ala karịa ọla ndị ọzọ, ihe anụ ahụ na-eju afọ, na fluidity dị mma karịa ọla ndị ọzọ na obere okpomọkụ;
82. A ga-atụ nha nha site na mmalite mgbe a gbanwere usoro ọnọdụ nke akụkụ ọkụ ọkụ;
83. Siemens 80F / S bụ nke electronic akara mbanye;
84. The solder mado ọkpụrụkpụ nlele na-eji laser ìhè atụ: solder mado ogo, solder mado ọkpụrụkpụ na solder mado obibi obosara;
85. A na-enye akụkụ SMT site na oscillating feeder, disc feeder na coiling belt feeder;
86. Kedu òtù ndị a na-eji na ngwá ọrụ SMT: usoro cam, akụkụ mmanya akụkụ, usoro ihe nkedo na ihe ntanetị;
87. Ọ bụrụ na-enweghị ike ịmata akụkụ nlele anya, a ga-agbaso BOM, nkwenye mmepụta ihe na osisi sample;
88. Ọ bụrụ na usoro nkwakọ ngwaahịa nke akụkụ bụ 12w8p, a ga-edozi ọnụ ọgụgụ pinth nke counter na 8mm oge ọ bụla;
89. Ụdị igwe ịgbado ọkụ: ọkụ ịgbado ọkụ ikuku, ikuku ịgbado ọkụ nitrogen, ọkụ ịgbado ọkụ laser na infrared ịgbado ọkụ ọkụ;
90. Ụzọ dị maka SMT akụkụ sample sample: streamline mmepụta, igwe na-ebi akwụkwọ na-arị elu na aka na-ebi akwụkwọ;
91. Ụdị akara a na-ejikarị eme ihe bụ: okirikiri, obe, square, diamond, triangle, Wanzi;
92. N'ihi na profaịlụ reflow adịghị edozi nke ọma na ngalaba SMT, ọ bụ mpaghara preheating na mpaghara jụrụ oyi nke nwere ike ịmepụta micro crack nke akụkụ ahụ;
93. The abụọ nsọtụ nke SMT akụkụ na-ekpo ọkụ unevenly na mfe na-etolite: efu ịgbado ọkụ, deviation na nkume mbadamba nkume;
94. Akụkụ SMT na-arụkwa ihe bụ: igwe na-agba, igwe na-ekpo ọkụ, egbe egbe, tweezers;
95. QC kewara n'ime IQC, IPQC,.FQC na OQC;
96. High speed Mounter nwere ike ịgbago resistor, capacitor, IC na transistor;
97. Njirimara nke ọkụ eletrik static: obere ugbu a na mmetụta dị ukwuu site na iru mmiri;
98. Oge okirikiri nke igwe na-agba ọsọ na igwe zuru ụwa ọnụ kwesịrị ịdị nhata dịka o kwere mee;
99. Ezi ihe mma pụtara bụ ime nke ọma na mbụ;
100. Igwe a na-etinye ya kwesịrị ịrapara obere akụkụ mbụ wee buru akụkụ buru ibu;
101. BIOS bụ isi ntinye / mmepụta usoro;
102. Enwere ike kewaa akụkụ SMT ka ọ bụrụ ndu na enweghị ndu dịka ụkwụ dị;
103. Enwere ụdị atọ dị mkpa nke igwe ntinye ọrụ: ntinye na-aga n'ihu, ntinye aka na-aga n'ihu na ọtụtụ ndị na-etinye aka;
104. Enwere ike ịmepụta SMT na-enweghị ihe nkwụnye;
105. Usoro SMT nwere usoro nri, ngwa nbipute tapawa, igwe na-agba ọsọ, igwe zuru ụwa ọnụ, igwe ịgbado ọkụ ugbu a na igwe nchịkọta efere;
106. Mgbe a na-emeghe akụkụ okpomọkụ na iru mmiri dị nro, agba dị na kaadị iru mmiri na-acha anụnụ anụnụ, a pụkwara iji akụkụ ahụ mee ihe;
107. Ụkpụrụ nha nke 20 mm abụghị obosara nke warara;
108. Ihe na-akpata mkpirisi mkpirisi n'ihi mbipụta na-adịghị mma na usoro:
a.Ọ bụrụ na ọdịnaya ígwè nke tapawa solder adịghị mma, ọ ga-eme ka ọ daa
b.Ọ bụrụ na oghere nke efere ígwè ahụ buru ibu, ihe dị na tin dị ukwuu
c.Ọ bụrụ na àgwà nke efere ígwè adịghị mma na tin adịghị mma, dochie template ịkpụ laser
D. e nwere residual solder mado na agbara n'akụkụ nke stencil, belata nrụgide nke scraper, na họrọ kwesịrị ekwesị agụụ na mgbaze.
109. Isi ebumnuche injinia nke mpaghara ọ bụla nke profaịlụ nke ọkụ reflow bụ nke a:
a.Mpaghara preheat;ebumnuche injinia: ntụgharị ntụgharị na tapawa solder.
b.Mpaghara nhata okpomọkụ;ebumnuche injinia: ịgbalite mgbanwe iji wepụ oxides;ntụgharị nke mmiri fọdụrụnụ.
c.Mpaghara mweghachi;ebumnuche injinia: agbaze agbaze.
d.Mpaghara jụrụ oyi;ebumnuche engineering: alloy solder nkwonkwo mejupụtara, akụkụ ụkwụ na mpe mpe akwa n'ozuzu;
110. Na SMT SMT usoro, isi ihe na-akpata solder bead bụ: ogbenye depiction nke PCB mpe mpe akwa, ogbenye depiction nke ígwè efere oghere, oké omimi ma ọ bụ nrụgide nke ọnyịnye, nnukwu ịrị elu mkpọda nke profaịlụ curve, solder mado ọdịda na ala mado viscosity. .
Oge nzipu: Sep-29-2020