A lot of people are hit in the city after going all out a few years, the effort that relies on oneself eventually buys a room to settle down. But before everybody shortly will enter, meet almost kink: Should the door of guard against theft of new building change after all? Because of when making a room, development business has held door of guard against theft commonly, some people can be changed for safe for the purpose of new, but some are factitious managing cost, can continue to use original door. To this everybody the view is differ, there is a problem greatly among this actually.
Say according to the personage inside course of study, in some of development business is built in the building to control cost, connect regular meeting to choose a few prices to compare low door. Such door can cry only " project door " . Quality cannot assure, put possibly even in safe problem. The making material that at present project door develops what business configures to enter a door to use namely is hot-rolling and cold rolling board, because low-cost. The not better than that the material of door of guard against theft uses heats up make friends armor plate, cold rolling armor plate and galvanization armor plate. Hardness of hot-rolling armor plate is low, treatment is easy, it is good to extend function, but because control the account of roll kind, appear easily fault is torn off; Hardness of cold rolling board is tall, treatment is relatively some more difficult, but not changeful form, intensity is higher. But the anticorrosive performance of cold rolling armor plate is very poor, with the armor plate when air is contacted meeting oxidation rusts. Plating zine plate is on both foundation, adopt the processing technology of electric galvanization, put an end to hot-rolling is mixed the craft blemish of cold rolling board, but the value is relative more expensive.
If oneself cannot decide the stand or fall of quality of door of guard against theft, can be chosen from the following respects.
Read order and degree
According to the intensity of door of guard against theft, cent of door of guard against theft is armour, second, third, man 4 grade. First class is highest, with this analogize. These grade can use steel seal symbol in the side of door of guard against theft, man of armour second third indicates correspondingly respectively is J, Y, B, D. If the door does not have steel seal,not be door of guard against theft for certain, must change immediately.
See door lock
At present manufacturer of production of door of most guard against theft is to purchase lock directly commonly, do not eliminate a few manufacturer for managing cost, violate compasses the lock that used quality to close nevertheless and sale of form a complete set of door of first class guard against theft. The lock of guard against theft that uses now differentiates to be mixed for class of class A, B exceed B level 3 grade, level of guard against theft is ordinal increase by degrees. Exceed performance of B class guard against theft best, classics the Ministry of Public Security detects 270 minutes cannot technical open, area each other leaves rate for 0 (1/16000000) . We can discern from the appearance of the key the grade of key cylinder.
At present spoon of key of guard against theft of the class A on market basically has one word key and crossed key.
(spoon of class A key)
Spoon of B class key is flat key, have chamfer of double platoon billiards.
(spoon of B class key)
Exceed appearance of B class key to be the mill inside bosseyed lamina groove or outside mill chamfer key, key cylinder type is edge column key cylinder. Billiards structure adds V Bian Zhusuo to decide for double platoon lamina.
(exceed spoon of B class key)
Door of guard against theft is having crucial effect in aspect of protective family security, resident of a few high levels, thief is prize is locked up door, locking up good guard against theft locking up good guard against theft so is more important than door style quality. If do not plan to change the door, must differentiate the stand or fall of key cylinder carefully.
How to differentiate core of door lock of guard against theft
1. watchs the key " tooth " . The tooth is more, tine is deeper, arrange more complex, open difficulty is greater, performance of guard against theft is better.
2. weight is heavier, key cylinder quality is better, the bead inside key cylinder is more, function of guard against theft is better.
The key cylinder with 3. good quality is used eletroplate processing, the surface is slick, colour and lustre is bright. Among them what color fizzles out greatly is cupreous core, solidder, performance of guard against theft is better, key cylinder colour and lustre is dim, color is ashen alveolate is zincic alloy, performance of guard against theft is average.
4. key rotates the performance of guard against theft that inserts key cylinder to be blocked is poor, after the key is inserted partly, with 5 arrange hour hand to 7 component of force anticlockwise perhaps rotate and continue to press the key the mouth that take a lock, the key that is blocked explains performance of key cylinder guard against theft is poor, rotating smoothly partly the effect of demonstrative guard against theft that condition inserts into key cylinder is good.
Still have a lot of about the element of security of door of guard against theft and wear additionally, the hinge that consumer must see door leaf and shake handshandle these two crucial position, "Hinge " the stability that affects door of guard against theft, hinge was differred, time became long door leaf is meeting occurrence abnormal knocking, flagging. How Where is the stand or fall of appraisal hinge? See material pledge, of galvanization with stainless steel two kinds, first selection stainless steel; Shake handshandle quality is better understood, pull everyday, quality is bad to become loose easily, additionally shake handshandle can be destroyed through outside force outside the door, pull shake handshandle to open the door directly. The stand or fall of shake handshandle also is to see material pledge, good shake handshandle is used expect thick feel is good, poor shake handshandle data is weak, exert all his strength to be out of shape.
The family life that compose builds a safe happiness is the dream of everybody, common we are easy a few detail of negligence may be " bring a thief to enter room " crucial. The gate of guard against theft that installs to developing business should be changed after all, should there be a few knowledges after believing everybody looks?
