Even if you close your eyes, you can see large black spots floating under your eyes.

Wang Lu was a little anxious, and forced his eyelids to open a little, and the bright light immediately stimulated him to tears, so he had to close them again.

This can't be done, if a zombie comes, he and Xie Ling won't even have the strength to fight back.

Wang Lu raised his head and said, "Xie Ling, where are you?" Are you okay? ”

Xie Ling's voice came from the side: "I'm fine, but my eyes are full of tears." ”

Wang Lu breathed a sigh of relief: "You put the crossbow arrow down, stretch out your hand, and slowly approach me, I also stretch out my hand, you listen carefully, I, just, stand, in, this, in!" ”

Xie Ling closed her eyes, she vaguely remembered the position where Wang Lu was squatting just now, carrying a crossbow in one hand, letting the arrow face downward, stretching forward with the other, and slowly moving over.

Wang Lu's two arms slowly waved beside him, and there were words in his mouth: "I'm here, here." ”

One arm touched Wang Lu's wrist, Wang Lu hurriedly flipped his wrist and grabbed it tightly, it was Xie Ling's hand.

Wang Lu immediately hurried: "Xie Ling, the two of us can't see anything now, if there is only a zombie, it will be miserable." You quickly stand back to back with me, I use a woodcutter, you use a crossbow, swing 180 degrees in front of you, more or less block the zombies. ”

Xie Ling knew that Wang Lu was also a first-aid chapter in desperation, and at most it played the role of an early warning. There are really zombies attacking, and under the difficulty of seeing in both eyes, I can't even run fast.

But running now is also unrealistic, dizzy, maybe you will directly crash into the zombie group, it is better to calm down.

Xie Ling calmed her breath, turned around, and Wang Lu back-to-back, stretched out her crossbow, straightened her arms as much as possible, and waved them in front of her.

Wang Lu's size was a little worse than Xie Ling, but Xie Ling felt the warmth and thickness behind her, and unexpectedly, she felt a little more at ease.

The stimulation of gas welding sparks comes and goes quickly.

After shedding tears for a while, Wang Lu could barely open his eyes, and did not dare to rub them with his hands, for fear that the more he rubbed them, the more irritating his eyeballs, he squinted his eyelids and looked out, - fortunately, he did not see the shadow of the zombie.

Xie Ling didn't stare directly at the welding spark like Wang Lu, the distance was far away, and his sight recovered first.

She immediately said, "I'm fine." Brother Wang, I'll be on guard for you, don't worry. As he spoke, he wiped the tears from his cheeks with his sleeve and looked around with his crossbow.

Wang Lu closed his eyes for a while, and then opened his eyes with tears on his face.

Through the blurred tears, Wang Lu saw that Xie Ling in front of him was also embarrassed with tears on her face, and couldn't help but laugh a little.

Really, a pair of fools.

After the two fully recovered, Wang Lu picked the stainless steel pipe with the thickest diameter and thickest wall, measured the length with the tape measure in the store, cut it to a suitable length with hydraulic shears, and prepared to weld the security door by himself.

Originally, the rungs in the middle of the door should be a little thinner than the border, so that the border is neat and smooth, Wang Lu didn't pay attention to these, and directly picked the thickest and thickest, both the border and the rung, as for whether the edge is smooth - this is the matter of Lao Tzu. According to Wang Lu's thoughts, he couldn't use an arm-thick steel pipe to make a door.

Wang Lu cut the pipe and began to weld.

Of course, this time he won't make the mistake of looking directly at the naked eye again, and there is already a welding goggle mask on the table in the store, which he used to wear.

First, start welding from the rectangular frame, Wang Lu close the two stainless steel pipes, and finally remember to cut it into a 45-degree angle at the interface, and then, ignite the welding nozzle and adjust the fire beam.

Reach the seam of the pipe.

The surface of the stainless steel pipe immediately turned black under the fire, and then it appeared a dark blue color, and the welding sparks splattered everywhere - and then, and then it was gone, not red, not melted, except for a few sparks that turned into slag, which fell to the ground, and nothing happened.

"What's going on?" Wang Lu turned off the welding nozzle, put down the goggles, reached out to touch the stainless steel pipe in front of his feet, and was immediately scalded back to pinch his ears, "Scalded to death." ”

Xie Ling turned her eyes away when she was in Wang Lu's spot welding mouth, and when she heard Wang Lu's noise, she turned around: "What's the matter, it's stabbing again?" Didn't you wear goggles? ”

Wang Lu took his fingers, which had been burned to a browned skin, into his mouth and said vaguely, "No." This, this stainless steel pipe can't be welded. ”

Xie Ling leaned over curiously: "How could it be?" I've seen welding torches before, and the fire is so powerful that the iron plate burns a hole. She took a closer look and found that the joints of the two stainless steel pipes, in addition to being blue and black, had no traces of melting and condensation. ,

Wang Lu next to him smiled bitterly: "I'm also strange, it's not that I haven't seen gas welding, and the anti-theft doors of the iron fence are not all welded with gas welding." This stainless steel pipe is much thinner than the iron bar, why can't it be melted! ”

Xie Ling stared at the stainless steel pipe with scorched and blackened edges, and muttered: "This welding is not very simple, the steel is melted into molten steel, and after it cools, the re-solidified molten steel will naturally connect the two pipes together." ”

What Xie Ling said was the same as Wang Lu originally thought, but when Wang Lu started welding, he found that things were not so simple at all, and the stainless steel pipe under the welding fire could not see the process of re-solidification of molten steel.

Wang Lu sat on the ground in frustration.

Speaking of which, Wang Lu's only "welding" experience was that the strap of one of Wang Bi'an's plastic slippers was broken, Wang Lu took a flathead screwdriver, put it on the gas stove and burned it for a few minutes, and when the screwdriver head turned red in the fire, he took it out and burned it in the middle of the belt stacked up and down.

However, after Wang Bi'an went downstairs to get milk in slippers and came back, the strap broke again.

It was disconnected at the "weld".

Tell me, with this stinky craft, how can Wang Lu play with real gas welding.

Xie Ling looked at Wang Lu's elongated face, and asked cautiously: "Brother Wang, is it related to the temperature, the temperature of this welding fire is too low?" ”

What does it have to do with temperature?

More than!

It is related to the degree of gas mixture.

It has to do with air pressure.

It has to do with flame regulation.

It is related to the angle of the gas welding nozzle.

Even, maybe it has something to do with the thickness of the stainless steel pipe!

Wang Lu, this is really a real experience of what it means to be interlaced, such as across the mountain!

A small worker whose overalls are full of welding sparks and burns holes in them, as long as he picks up the welding torch and stands in front of Wang Lu, he is a god.

can make Wang Lu, a fake petty bourgeoisie who suffers from Internet swiping syndrome, eat it to death.

Wang Lu resigned himself to putting the gas welding gun on the ground, and sighed heavily: "Forget it." ”

"Forget it? How can it be counted? Xie Ling was anxious: "No welding, how can we build an anti-theft door." Brother Wang, you try again, try again, I see, eighty percent is related to temperature, you try it, turn the flame temperature up or smaller. ”

Unable to resist Xie Ling's repeated pleas, Wang Lu himself also had the intention of gambling, re-lit the welding torch, and tried to adjust the size of the flame with the valve on the base to weld the stainless steel pipe.

Still, failure.

Nothing changed except for a pile of slag on the ground.

Xie Ling also lost the courage to persuade Wang Lu to try again.

Wang Lu glanced at the metal "cabinet" placed in the store - WS-160 DC argon arc welding machine.

Suddenly came to his senses.

You say, is the owner of this stainless steel door and window shop burning his hands with more money?

Obviously, there is gas welding, and I have to buy an argon and what arc welding machine, and it is clear that this welding machine is specially used to weld stainless steel pipes.

The gas cylinder is placed in the innermost corner, but this welding machine is placed at the door, next to the piles of stainless steel pipes, which is simply a clear way to tell Wang Lu: the WS-160 DC argon arc welding machine is the "shopkeeper" of this stainless steel door and window shop.

Weld stainless steel, it's time to use it!

However, now that there is no electricity, it is a waste to the core.

Wang Lu smiled bitterly - Actually, even if there is electricity, what if you look at the various switch buttons on that machine, will you use it? Do you dare to use it?

Electrocuting yourself is more likely.