Umgangatho oPhakamileyo weDizili Injector Nozzle DN4PD57 for Denso Toyota Engine Parts

Uhlalutyo lokuba kutheni umlomo wesitofu ubambekile kwizitofu (icandelo 2)

2.2 Uburhabaxa bomphezulu kunye neziphumo zomlinganiselo wobulukhuni Uburhabaxa bomphezulu bevalve yenaliti iyalinganiswa kwaye imfuneko yokurhabaxa komphezulu wevalve yenaliti yi-61HRC～65HRC yemfuneko yobulukhuni bomphezulu. Uburhabaxa bevalve yenaliti enenombolo yesitampu yentsimbi i-HHM yi-Ra0.03 Rt0.34, kwaye ubunzima bomhlaba yi-60.4HRC～60.7HRC; ivalve yenaliti enesitampu sentsimbi HD yiRa0.02, Rt0.37, kunye nobunzima bomhlaba yi-62.3HRC. Uburhabaxa kunye nokuqina kweevalvu zeenaliti ezimbini ezingeniswe ukuba zihlolwe zonke ziyahlangabezana neemfuno zoyilo. Emva kokuba i-nozzle ihlulwe, uburhabaxa bomngxuma ongaphakathi bulinganiswe. Uburhabaxa bomngxuma ongaphakathi bombhobho wawuyi-0.05Rt0.8. I-Valve Ra0.07～1.16, i-Rt0.82-1.79. Uburhabaxa bomngxuma wangaphakathi wemilomo emibini engeniswe ukuba ihlolwe ayikhange ihlangabezane neemfuno zoyilo.

2.3 Umlinganiselo wobulukhuni bomphezulu kunye neziphumo zohlalutyo lwe-metallographic Ukuqina komphezulu wevalve yenaliti kufuneka kube yi-61HRC-65HRC, i-bainite yasimahla ayivumelekanga kwaye i-austenite eshiyekileyo ayidluli kwi-5%. Ukuqina kwevalve yenaliti enenombolo yesitampu sokuqala i-HHM yi-62.9HRC～63.6HRC, ubungakanani beenkozo yi-10, kunye neqondo lobushushu obukhulu yi-2; ukuqina kwevalve yenaliti enenombolo yokuqala yesitampu sentsimbi HD yi-62.4HRC～63.4HRC, ubukhulu bengqolowa yi-9 kunye ne-degree of superheat yi-2. Ubunzima beentsimbi ezimbini zeenaliti zonke zihlangabezana neemfuno zokuyila.