Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/init.php on line 48 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/init.php on line 48 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/engine.php on line 116 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 102 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 234 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 234 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 238 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 238 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/functions.php on line 106 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/internat/data/www/avtoremontnaya.ru/engine/modules/show.full.php on line 422 Ручная резка и нарезание резьбы » Статьи по строительству, ремонту, дизайну, интерьеру. Советы по стройматериалам

Ручная резка и нарезание резьбы Сантехника, водоснабжение, канализация
Автор: admin | 5 мая 2009 | Просмотров: 1585

Ручная резка и нарезание резьбы

При этих работах используют ручную ножовку, а приспособ­лением служат тиски и прижимы. Перед резанием труб их раз­мечают на заготовки необходимой длины с помощью металлической линейки, закрепленной на верстаке с у п о р о м на одном конце. Трубу закрепляют в прижиме таким образом, чтобы линия разреза была расположена близко к прижиму. Рабочий ход ножовки (вперед) выполняют с нажимом, а обратный (хо­лостой) — без нажима.

Резка труб труборезом. Линию разреза наносят по всей окружности трубы. Труборез с раздвинутыми роликами наде­вают на трубу, неподвижные ролики устанавливают на линии разметки, а подвижный подводят к поверхности трубы. Затем рукояткой производят движение вперед (на пол-оборота) и на­зад (на четверть оборота), поджимая после каждого движения подвижный ролик.

Трубы диаметром 80—110 мм режут на труборезных стан­ках или с помощью рычажного трубореза, снабженного роли­ками и специальным призматическим резцом.

Нарезание резьбы на трубах. Наружная резьба на трубах нарезается с помощью клубного клуппа. Он снабжен четырьмя р е з ь б о в ы м и п л а ш к а м и (гребенками), которые сдвигаются и раз­двигаются одновременно. Это позволяет одним и тем же клуп­пом нарезать резьбу на трубах диаметром от 1/2 до 3 дюймов.

Вначале проверяют состояние плашек, закрепляют конец тру­бы в трубном прижиме, конец очищают напильником от ока­лины и смазывают нарезаемую часть олифой. Затем устанавли­вают клупп на конец трубы, сдвигают плашки, чтобы резьба была нарезана в два-три хода. Клупп с раздвижными плашками надевают на трубу и легкими движениями киянки по рукоятке планшайбы доводят направляющие плашки вплотную к трубе и закрепляют стопорными болтами. Так же закрепляют р е ж у щ и е плашки, ориентируясь на риску планшайбы. После этого вра­щают клупп по часовой стрелке, одновременно нажимая на него.

Клупп вращают вокруг трубы, совершая полный оборот в четыре приема. После первого перехода раздвигают плаш­ки, снимают с трубы клупп и проверяют резьбу. Далее выпол­няют второй, а при необходимости и третий проход, поджи­мая плашки.
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