خودکار چیست و تاریخچه خودکار
ثبت سفارش خودکارِ: خودکار نوک ساچمهای یا بهزبان عام خودکار، یک ابزار نوشتاری نوین یا گونهای قلم است. خودکار دارای یک لولهٔ درونی است دارای جوهر چسبناکی که با چرخش گوی کوچک فلزی (۰٫۷ میلیمتر تا ۱٫۲ میلیمتر در قطر) از جنس برنج، فولاد یا تنگستن کربید در نوک آن، در زمان استفاده پخش میشود.
همه می گویند نیاز، مادر اختراع است ولی خودکار به خاطرمشکلات خودنویس و به ستوه آمدن مصرف کنندگان آن اختراع شد .
یکی از مشکلات خودنویس این بود که جوهرش به صورت خشک نمی شد و زمان می برد. در سال ۱۹۳۸ یک روزنامه نگار مجارستانی به نام لازلو بیرو ( Laszlo Bire ) که از خودنویس خود و زمان زیادی که برای خشک شدن لازم داشت به ستوه آمده بود با دیدن مرکب چاپ که در چاپ روزنامه استفاده می شد و به سرعت خشک می شد به این فکر افتاد که از مرکب چاپ داخل خودنویس استفاده کند. ولی مرکب چاپ هیچگاه به نوک خودنویس نرسید چون غلیظ بود و نمی توانست در شیار نوک خودنویس جاری و به سطح کاغذ برسد .
او از برادرش که یک شیمیدان بود کمک گرفت و با تغییراتی اندک در مرکب جوهر کمی از غلظت آن کاست و چیزی شبیه جوهر خودکار امروزی را ابداع نمود ولی با این حال هنوز هم این جوهر غلظت بالایی برای روان شدن در خودنویس را داشت و لذا خودنویس را کنار گذاشت و به فکر قلم جدیدی افتاد که بتواند این جوهر غلیظ که سریع هم خشک میشود را به سرح کاغذ برساند .
تعرفه های خودکار
واردات خودکار تحت تعرفه های 96081010- 96082090- 960899902
شرکت پرتوتجارت سپهر دوازدهم
شرکت پرتوتجارت با سالها سابقه و همکاری با کارشناسان کاردان در زمینه تجارت و بازرگانی، صادرات و واردات، می تواند راهنمای شما در تمامی امور بازرگانی باشد. از خدمات این شرکت تجاری می توان به مشاوره بازرگانی، ثبت سفارش، انجام حواله های بانکی، خرید کالا، انجام تشریفات اداری گمرک و پیگیری اسناد، حمل و نقل کالا و … اشاره کرد. پیشنهاد ما درحوزه بازرگانی این می باشد که امور بازرگانی خود را به ترخیص کاران و کارشناسان در این زمینه بسپارید. تا از تجارتی امن و قانونی در اسرع وقت بهره مند شوید.
شما عزیزان می توانید برای هرگونه پرسش و پاسخ در خصوص ثبت سفارش خودکار به صورت رایگان با کارشناسان ما تماس بگیرید.
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